Questions on Geometry: Triangles answered by real tutors!

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Question 180087: an isosceles triangle has a perimeter of 82cm and the length of the legs are represented by (3x+2) and (5x-14). What is the length of the base of the triangle?
Click here to see answer by stanbon(75887)

Question 180168: 6.Is it possible to draw the following triangles ? If not explain why.
a) An obtuse scalene
b) An acute scalene
c) A right scalene
d) An obtuse equilateral

Click here to see answer by stanbon(75887)

Question 180170: 7.. Explain the difference between congruent and similar figures ?
Click here to see answer by eperette(173)

Question 180170: 7.. Explain the difference between congruent and similar figures ?
Click here to see answer by solver91311(24713)

Question 180167: 5. Classify the following as true or false. Explain why.
a) A ray has two endpoints.
b) A line segment contains an infinite number of points

Click here to see answer by stanbon(75887)

Question 180165: 4. Find the missing measure of each triangle.
A= 50, B= 70 c= ?

Click here to see answer by checkley77(12844)

Question 180206: 1. Can a triangle have two obtuse angles? Justify your answer
Click here to see answer by Fombitz(32388)

Question 180205: 3. If three lines all meet in a single point, how many pairs of vertical angles are formed ?
Click here to see answer by Fombitz(32388)

Question 180207: 2. Can a parallelogram have four right angles? Justify your answer
Click here to see answer by Mathtut(3670)

Question 180161: 1. Can a triangle have two obtuse angles? Justify your answer

Click here to see answer by Mathtut(3670)

Question 180798: The altitude of an equilateral triangle is 5.0cm. What is the lenght of a side?
Click here to see answer by user_dude2008(1862)

Question 180867: Ok, this deals with angles of elevation and deppression in triangles.
-A plane leaves a runway and rises to a height of 3078. At theat point it is 6000 feet from its point of take off. Find the angle of elevation form the plane to its take off.
I have so far figured out that is would use the SIN funtion and have set up the equation-
S
SIN x=3078/6000
but I am confused as to how to proceed to solve it?
Thanks

Click here to see answer by Alan3354(69443)

Question 180872: Ok this is a word prob....I am doing this for a honors Geometry class and we are studying trigonometry currently.
A person is on the top deck of a cruise ship and observes 2 fish following each other directly away from the ship in a straight line. His postition is 154 meters above sea level and the angles of depression to the 2 fish are 35 degrees and 36 degrees, respectivly. Find the distance between the 2 dolphins.
I have no clue how to begin...Thanks in advance for the help
Click here to see answer by cloudstrifeo0o(5)

Question 181101: Here is my question:
The height of a triangle is 4 2/3
The base of the triangle is 3/4
I need to find the area of the triangle. I have tried it, my mother has tried it, and my step-dad tried it.
Please help me.
Click here to see answer by Alan3354(69443)

Question 181099: ΔABC has a perimeter of 30. AB = 4x � 7, BC = 2x, and AC = 7. List the angles in order from least to greatest.
Click here to see answer by solver91311(24713)

Question 181181: Simply the following square root number 72? And it needs to be simplified not in a decimal number?
Click here to see answer by Mathtut(3670)

Question 181193: Simplify the square root of 54? And not in decimal form please?
Click here to see answer by Mathtut(3670)

Question 181187: Simplify the square root of 75? And not in decimal form please?
Click here to see answer by Mathtut(3670)

Question 181165: the altitude of an equilateral triangle is 12 centimeters. Find the perimeter of the triangle. Round to the nearest tenth.
Click here to see answer by HyperBrain(694)

Question 181568: The perimeter of a right triangle is 18. If the hypotenuse is 8, how many square units are in the area of the triangle? I know the formula for the area and the perimeter but don't know how to solve for this question with only knowing the hypotenuse.
Click here to see answer by josmiceli(19441)

Question 181366: The Base of the triangle is 4 inches longer than the length of one of the other sides. Use a system of equations to find the length of each side of the triangle. Perimeter =46 inches
Click here to see answer by ankor@dixie-net.com(22740)

Question 181616: A tipping platform is a ramp used to unload trucks. How high is the end of an 80 foot ramp when it is tipped by a 30 degree angle?
Click here to see answer by solver91311(24713)

Question 181616: A tipping platform is a ramp used to unload trucks. How high is the end of an 80 foot ramp when it is tipped by a 30 degree angle?
Click here to see answer by Mathtut(3670)

Question 181611: I am trying to prove triangles similar. The bigger triangle has an angle measuring 30 degrees and the two longer sides are congruent. The smaller triangles has an angle measure of 70 degrees and he two longer sides are congruent. My question is that whether or not I can prove them similar, and if so what postulate or theorem can I use?
Click here to see answer by solver91311(24713)

Question 181783: Find the area of the triangle with the given vertices:
A (-2,-6)
B (-2,-2) ,and
C (8,1)
Click here to see answer by solver91311(24713)

Question 181857: I Am Trying To Learn About Radicals. Can Any One Help?
Click here to see answer by solver91311(24713)

Question 181782: Find the area of the triangle with vertices:
A (-7,-3)
B (-7,6) , and
C (3,-1)
Click here to see answer by ankor@dixie-net.com(22740)

Question 180164: 3. If three lines all meet in a single point, how many pairs of vertical angles are formed ?
Click here to see answer by Alan3354(69443)

Question 182947: Detemine the area in square units of the triangle enclosed by the lines y=-4 x=5 and y=2x+16
Click here to see answer by Alan3354(69443)

Question 183294: A small area in fron of a building is triangular in shape. The perimeter of the triangle is 37 meters. The second side is one-half of the first side in length. The third side is 3 meters less than than the first side. Find the length in meters of each side of the triangular region.... Please help me I don't even know where to start
Click here to see answer by edjones(8007)

Question 183896: A triangle has an area of 77 square in. Find the length of the base if the base is 3 inches more then the height.
Click here to see answer by tvandenberg(45)

Question 183896: A triangle has an area of 77 square in. Find the length of the base if the base is 3 inches more then the height.
Click here to see answer by solver91311(24713)

Question 184008: please help me with these questions i can not figure them out
Click here to see answer by solver91311(24713)

Question 184083: Not sure if this question goes here, but I am having a horrible time trying to figure this out, so any help is greatly appreciated. Thank you.
The perimeter of a triangular dog pen has one side represented by 3x, another side represented by x +19 and the third side represented by 2x + 6. Find the algebraic expression for the perimeter. Find the numerical perimeter if the value of x is 5 feet.
Click here to see answer by vleith(2983)

Question 184063: hi,
Please help me my problem.If a shape that has three sides and three angles,can we call that a triangle?If the sides of the triangles are unsraight lines ,how can we call that?How can I know its angles and sides by computing?
please ..please..help me...thank you very much for yor answer.Thank you very much!! ! !

Click here to see answer by vleith(2983)

Question 183999: area of a sail. the area in square meters for a triangular sail is given by
A(x)=x^2+5x+6
A) find A(5).
b) If the height of the sail is x+3 meters, then what is the length of the base of the sail.
Click here to see answer by edjones(8007)

Question 184450: How do you find out if two triangles are similar? I know that the triangles' angles must be congruent, and their sides must be proportional. How do you determine if the sides are proportional?
Here is the problem:
Are any of these triangles similar? If so, write the appropriate similarity statement.
1st triangle-CAB CA=4; CB=4; AB=5/angles A and B are congruent.
2nd triangle-PRQ PR=8; RQ not listed; QP=10
3rd triangle-XYZ XZ=8; XY not listed; ZX=8
On triangles PRQ and XYZ, angles Z and P are congruent.

Click here to see answer by solver91311(24713)

Question 184742: what is isosolese triangle
Click here to see answer by Mathtut(3670)

Question 185071: How to you find the value of a triangle?
EXAMPLE: find the value of x
Click here to see answer by Alan3354(69443)

Question 185476: If possible, draw an equilateral quadrilateral that is not regular. If not possible, tell why.

Can you draw a polyhedron with 7 faces, 10 vertices, and 16 edges? If no, why not?
Click here to see answer by Alan3354(69443)

Question 186112: Triangle XYZ is an isosceles triangle. The length of the base is 10 inches and the height is 12 inches.Find the perimeter of XYZ. Explain how you got your answer.
Click here to see answer by jojo14344(1513)

Question 186136: Sam wishes to fertilize his lawn that is 75 feet by 207 feet. The fertilizer is on sale for $5.25 per bag. Each bag covers 575 square yards. What is the cost to fertilize his yard?
Click here to see answer by checkley77(12844)

Question 186135: Sam wishes to fertilize his lawn that is 75 feet by 207 feet. The fertilizer is on sale for $5.25 per bag. Each bag covers 575 square yards. What is the cost to fertilize his yard?
Click here to see answer by checkley77(12844)

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