Questions on Geometry: Triangles answered by real tutors!

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Question 252240: The sides of triangles A and B measure 5, 5, 8 and 5, 5, 6, respectively. What is the ratio of the area of triangle A to the area of triangle B ?
a. 1 : 1 b. 2 : 1 c. 3 : 2 d. 4 : 3 e. 5 : 4
Click here to see answer by vleith(2825)

Question 252357: The sides of triangles A and B measure 5, 5, 8 and 5, 5, 6, respectively. What is the ratio of the area of triangle A to the area of triangle B?
a. 1 : 1 b. 2 : 1 c. 3 : 2 d. 4 : 3 e. 5 : 4
Click here to see answer by richwmiller(9135)

Question 252359: Triangle ABC is defined by the vertices A (0,-6), B ( 1,0) and C (6,-7)
What type of triangle is ABC
a. Scalene Acute b. Scalene Right c. Scalene Obtuse
d. Isosceles Acute e. Isosceles Right

Click here to see answer by stanbon(57347)

Question 252398: In right triangle ABC where angle A is 90 degrees, AC = 3x and BC = 5x. if the perimeter of triangle ABC is 84, then what is x?
Click here to see answer by edjones(7569)

Question 252398: In right triangle ABC where angle A is 90 degrees, AC = 3x and BC = 5x. if the perimeter of triangle ABC is 84, then what is x?
Click here to see answer by drk(1908)

Question 252352: In ΔABC, Given (a/cosA)=(b/cosB)=(c/cosC) . Prove that ΔABC is an equilateral triangle.
Click here to see answer by Edwin McCravy(8909)

Question 252420: the lengths of the bases of a trapezoid are represented by x+3 and 3x-9. in terms of x, the length of the median of the trapezoid is?

Click here to see answer by dabanfield(803)

Question 252434: triangle A is similar to triangle B. side length of triangle A is 3 inches .side length of triangle B is 12 inches. the area of A is 10. what is the area of B ?
a 20 b 40 c 160 d 640 e 40640
Click here to see answer by drk(1908)

Question 252016: Q.2:- Let ABC be a triangle in which AB=AC and let I be its in-centre. suppose BC=AB+AI.find the angle BAC?
Click here to see answer by nyc_function(2733)

Question 250789: How do you solve the triangle when angle A is 84 degrees, side a is 12, and side c is 20?
Click here to see answer by drk(1908)

Question 250752: the side length of an equilateral triangle is 20 inches. find the length of an altitude of the triangle?
Click here to see answer by drk(1908)

Question 252698: How do you figure the sides of an Isosceles Triangle with a perimeter of 2 1/4"
Click here to see answer by Alan3354(30993)

Question 250699: what kind of triangle (acute, obtuse, or right) is radical 73, radical 66, radical 8
Click here to see answer by drk(1908)

Question 252906: 1. Two angles of a triangle each measure 70°. What is the measure of the third angle in degrees?

Click here to see answer by richwmiller(9135)

Question 250318: If an isosceles triangle has a perimeter of 64. How many different triangles can this be, and what are the dimensions of each triangle?
Click here to see answer by drk(1908)

Question 252954: i am doing a project for school and i had to graph a triangle. After that i have to find the degrees and sides for the triangle. Can you help me find the degrees and sides

Click here to see answer by drk(1908)

Question 253079: You are given a 30-60-90 degree triangle with the shortest leg having a length 42 units. What will the length of the longest leg and of the hypotenuse be?
Click here to see answer by hokies(65)

Question 250081: An aircraft is vertically above a point which is 10km West and 15km North of a control tower. If the aircraft is 4000m above the ground, how far is it from the control tower?
Click here to see answer by Alan3354(30993)

Question 253146: Tim says that if the measure of one angle of an isosceles triangle equals 30 degrees, then the measure of the other two angles must each be 75. Marc disagrees he says that while Tim is correct some of the time, there is another possible solution.support Tim's claim and Marc's claim.explain how the angle measures where found please.
Click here to see answer by edjones(7569)

Question 253145: please explain why its possible to have an isosceles right triangle but not an equilateral right triangle
Click here to see answer by jim_thompson5910(28595)

Question 253145: please explain why its possible to have an isosceles right triangle but not an equilateral right triangle
Click here to see answer by edjones(7569)

Question 253145: please explain why its possible to have an isosceles right triangle but not an equilateral right triangle
Click here to see answer by rapaljer(4667)

Question 253205: How do you find the missing side of a right triangle when the hypotenuse is 14 and the base is 9?
Click here to see answer by richwmiller(9135)

Question 253205: How do you find the missing side of a right triangle when the hypotenuse is 14 and the base is 9?
Click here to see answer by Nikki456(9)

Question 253407: i have two questions that i really need help with, help would be very appreciated.
1. A parcel of land is in the shape of an isosceles triangle. the base had a length of 673 feet and the two equal legs meet an angle of 43 degrees. Find, to the nearest square foot, the area of the parcel of land.
i know that area equals one half base times height but i have no idea how to figure out the height i dont know if i should cut the triangle in half or what.
2. The triangle top of a table has two sides of 14 inches and 16 inches and the angle between the sides is 30 degrees. Find the area of the tabletop, in square inches.
i drew i diagram and have attepmted several ways but none of the answers makes sense should i use sohcahtoa i desperatley need help.
Click here to see answer by Alan3354(30993)

Question 253344: need to find the hypotenuse of a triangle. It has a 15, 90 and 85 degree angle. One side of the triangle is measured 48 yards.
Click here to see answer by Theo(3464)

Question 253583: I uploaded a visual for the problem here.
http://img697.imageshack.us/img697/6130/triangle.gif
Segment AB is congruent to segment DB
What triangle is triangle CBA congruent to? What conjecture supports this?
Click here to see answer by richwmiller(9135)

Question 253663: If two angles in one triangle are congruent to two angles in another triangle, then are the two triangles are congruent?
Click here to see answer by edjones(7569)

Question 253663: If two angles in one triangle are congruent to two angles in another triangle, then are the two triangles are congruent?
Click here to see answer by j1mmy94(14)

Question 253669: What is the number of stories in the tallest house you can build with two 52-card decks? How many cards would it take?
Click here to see answer by checkley77(12569)

Question 253674: one side of a triangle is 1 inch longer than shortest side and is 1 inch shorter than the longest side. the perimeter is 17 inches. what is the dimension of the triangle ?

/
Click here to see answer by stanbon(57347)

Question 253705: Determine whether the given measures can be the lengths of the sides of a triangle. Write yes or no.
1. 2,3,4
2. 5,7,9
3. 4,8,11
4,13,13,26
5. 9,10,20
6. 15,17,19
7. 14,17,31
8. 6,7,12
Can you please explain how to do this please? :)
Click here to see answer by stanbon(57347)

Question 253712: Find the range for the measure of the third side of a triangle given the measures of two sides.
1. 5 and 9
2. 7 and 14
3. 8 and 13
4. 10 and 12
5. 12 and 15
6. 15 and 27
7. 17 and 28
8. 18 and 22
Click here to see answer by Edwin McCravy(8909)

Question 253715: Determine whether the given coordinates are the vertices of a triangle.
1. A(3,5), B(4,7), C(7,6)
2. S(6,5), T(8,3), U(12,-1)
3. H(-8,4), I(-4,2), J(4,-2)
4. D(1,-5), E(-3,0), F(-1,0)
5. R(1,3), S(4,0), T(10,-6)
6. W(2,6), X(1,6), Y(4,2)
7. P(-3,2), L(1,1), M(9,-1)
8. B(1,1), C(6,5), D(4,-1)
Click here to see answer by richwmiller(9135)

Question 245263: how do you know if a triangle is equiangular or equilaterial
Click here to see answer by Alan3354(30993)

Question 253926: an isosceles triangle has a base of 10 units. If the congruent sides have whole number measures what is the least possible length of the sides?
A)5 B)6 C)17 D)21
Click here to see answer by MRperkins(300)

Question 254001: A ladder is leaning against a house. The ladder is 13 feet long and the foot of the ladder is 5 feet away from the base of the house. How far up the side of the house does the ladder reach?
Click here to see answer by edjones(7569)

Question 250244: I don't have scientific calculator, I need solution for this problem. :-
The measures of the angles of a triangle are (9 square root of 2x + 17 to the power 0) , (9 squareroot x) to the power 0 and (12 squareroot of x + 33 ) to the power 0 . find the measure of each angle? classify the triangle by its angles ?
Click here to see answer by richwmiller(9135)

Question 254077: the vertex angle of an isosceles triangle measures 80 degrees. what is the measure of each base angle?
Click here to see answer by solver91311(16885)

Question 254077: the vertex angle of an isosceles triangle measures 80 degrees. what is the measure of each base angle?
Click here to see answer by richwmiller(9135)

Question 254128: solve for the ratio of the areas of 2 similar trianges whose largest sides are 6 cm.and 13 cm.
Click here to see answer by dabanfield(803)

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