Questions on Geometry: Triangles answered by real tutors!

Tutors Answer Your Questions about Triangles (FREE)

Question 1151812: Find the area of the triangle ABC
a=6
b=7
c=4
Click here to see answer by ikleyn(52776)

Question 1151817: Solve for triangle ABC
a=6
b=7
c=4
these are all sides, its an SSS triangle
Thank you!
Click here to see answer by ikleyn(52776)

Question 1151811: A= 25 degrees
a=5
b=11
Solve the triangle ABC
Thank you!!
Click here to see answer by ankor@dixie-net.com(22740)

Question 1151811: A= 25 degrees
a=5
b=11
Solve the triangle ABC
Thank you!!
Click here to see answer by jim_thompson5910(35256)

Question 1151807: find a triangle two of whose angle have sizes TAN-1 (1.5) and TAN-1 (3). answer this question either by giving coordinates for three vertices, or by giving lengths of the three sides. To the nearest 0.1 degree, find the size of the third angle in your triangle.
Click here to see answer by Theo(13342)

Question 1151854: Which equation would best help solve the following problem?
The height of a triangle is 4 m less than its base. The area of the triangle is 48 m2. Find the length of the base.

Click here to see answer by MathLover1(20849)

Question 1151894: One angle of an isosceles triangle measures 34°. Which other angles could be in that isosceles triangle?
Click here to see answer by MathLover1(20849)

Question 1151798: what are the angle measures of △GHI in order from smallest to largest, given that HI=42 miles, GH=69 miles, and GI=82 miles.
Click here to see answer by jim_thompson5910(35256)

Question 1151945: a triangle has an area of 10 square units and enclosed by the x-axis, y-axis and the line 2y+ax-10=0. Find the values of a
Click here to see answer by rothauserc(4718)

Question 1151945: a triangle has an area of 10 square units and enclosed by the x-axis, y-axis and the line 2y+ax-10=0. Find the values of a
Click here to see answer by MathLover1(20849)

Question 1152046: What are the angle measure of the triangle if the measures are 21, 7 sqrt 3, and 14 sqrt 3?
Click here to see answer by Boreal(15235)

Question 1152046: What are the angle measure of the triangle if the measures are 21, 7 sqrt 3, and 14 sqrt 3?
Click here to see answer by MathLover1(20849)

Question 1152046: What are the angle measure of the triangle if the measures are 21, 7 sqrt 3, and 14 sqrt 3?
Click here to see answer by ikleyn(52776)

Question 1152047: What are the angle measures of the triangle? the angles are 21, 7 sqrt 3 and 14 sqrt 3
Click here to see answer by MathLover1(20849)

Question 1152047: What are the angle measures of the triangle? the angles are 21, 7 sqrt 3 and 14 sqrt 3
Click here to see answer by ikleyn(52776)

Question 1152148: If there was a right triangle, one side measures 5 for the opposite, and the other 13 for the hypotenuse, what would the adjacent be?
Click here to see answer by Alan3354(69443)

Question 1152149: A helicopter hovers 1100 feet above a small island. The figure shows that the angle of depression from the helicopter to point P is 33 degrees . How far off the coast, to the nearest foot, is the island?
Click here to see answer by josgarithmetic(39616)

Question 1152309: A 6-foot man, standing in front of a 15-foot lamppost, casts a shadow of 8 feet. If he steps another 3 feet away from the lamppost, how much will his shadow lengthen?

Click here to see answer by Boreal(15235)

Question 1150120: Point D is the midpoint of median AM of triangle ABC. Point E is the midpoint of AB, and point T is the intersection of BD and ME. Find the area of triangle DMT if [ABC] =150.
Click here to see answer by foofy(2)

Question 1152671: An isosceles triangle has an angle that measures 40°. Which other angles could be in that isosceles triangle?
Click here to see answer by Alan3354(69443)

Question 1152691: In a triangle ABC de is parallel to Bc and d is the mid point of Side Ab. Find Ae and BC if De=6cm and EC =5 cm
Pls help me in this question as fast as possible
Click here to see answer by rothauserc(4718)

Question 1152713: Find AB if BD=10cm and BC=25cm
D
/|\
/ | \
/ | \
/ | \
/ |__ \
/_____|__|________\ C
A B
Click here to see answer by ikleyn(52776)

Question 1152712: Find a if sinA= 0.82, cosA = 0.57, tanA = 1.43 and c= 60 Look at the triangle side ways or tilt head to right
B
| \
| \
| \
a | \ c
| \
| \
|————\
C b A
Click here to see answer by Alan3354(69443)

Question 1152986: What is the scale factor of the dilation?
http://prntscr.com/r7iuyh

Click here to see answer by MathLover1(20849)

Question 1152984: in the figure below triangle abc ~ triangle a'b'c'. which statement is true of the transformation from triangle abc to triangle a'b'c'?
http://prntscr.com/r7is58
a. the lengths of all corresponding sides change by a scale factor of 1/2
b. the lengths of all corresponding sides change by a scale factor of 2
c. the measures of all corresponding angles change by a scale factor of 1/2
d. the measures of all corresponding angles change by a scale factor of 2
Click here to see answer by Boreal(15235)

Question 1152983: The dashed triangle is the image of the solid triangle for a dilation with center at the origin. What is the scale factor?
http://prntscr.com/r7incc
a. 2/3
b. 3
c. 3/2
d. 1/3
Click here to see answer by MathLover1(20849)

Question 1153059: The base of a triangle is
4
inches more than
2
times the height. If the area is
8
square inches, find the base and the height.

Click here to see answer by MathLover1(20849)

Question 1153061: Let
f(x)=x^2+3x−13
, and
g(x)=−3
. Find all values for the variable x
, for which
f(x)=g(x)
.
Click here to see answer by MathLover1(20849)

Question 1153060: Let
f(x)=(x−2/5)^2
. Find all values for the variable
x
, for which
f(x)=0
.
Click here to see answer by MathLover1(20849)

Question 1153156: What is the length of the longest side of a triangle that has vertices at (4, -2), (-4, -2), and (4, 4)?

Click here to see answer by Boreal(15235)

Question 1153327: Jack measures the angle of elevation to the top of a 250 ft high telecommunications tower to be 33 degrees and the angle of depression to the base of the tower to be 16 degrees.
a) Sketch and label a diagram of the situation.
b) How far is jack from the tower?
Click here to see answer by josgarithmetic(39616)

Question 1153340: set up and solve an equation to find line np
http://prntscr.com/raznpa
Click here to see answer by math_helper(2461)

Question 1153338: verify that line nq is parallel to line pr using the converse of the triangle proportionality theorem
http://prntscr.com/razb37
Click here to see answer by MathLover1(20849)

Question 1153445: The height of a parallelogram is 4.5 cm the base is twice the height what is the area
Click here to see answer by MathLover1(20849)

Question 1153480: Use similar triangle to solve:
A person who is 5 feet tall is standing 80 feet from the base of a tree and the tree casts an 86-foot shadow. The person's shadow is 6 feet in length. What is the tree's height?
Please show steps to solve.
Thank you in advance,
SYL
Click here to see answer by greenestamps(13198)

Question 1153483: Use an Algebraic equation to determine each rectangle's dimensions.
An American football field is a rectangle with a perimeter of 1040 feet. The length is 200 feet more than the width. Find the width and length of the rectangular field.
Thank you in advance,
SYL
Click here to see answer by greenestamps(13198)

Question 1153572: In right triangle ABC, AC = BC and ∠C = 90. Let P and Q be points on hypotenuse
AB, such that ∠PCQ = 45°. Show that AP^2+BQ^2=PQ^2. I think the first step is
to rotate it 90 degrees counter clockwise around C, let P go to P’ and find ∠P’CQ.
Click here to see answer by josgarithmetic(39616)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690