Questions on Geometry: Triangles answered by real tutors!

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Question 257153: The vertex angle of an isosceles triangle measures 80 degress.What is the mesure of each base angle.
Click here to see answer by edjones(7569)

Question 257318: If the length of two sides of an isosceles triangle are 4 and 8, what is the length of the third side?

Click here to see answer by richwmiller(9135)

Question 257344: Hi! Im having difficulty understanding why my answer is wrong in the following problem:
In triangle ABC, centroid D is on the median "AM". "AD"= x+6 and "DM"= 2x-5. Find "AM"
anything with the quotations means that it is a line.
so i solved it by these steps:
1) 2x-5 = x+6.....x=11
2) 11+6=17, 22-5=17 ( i did this because i substituted x into the equations given for the length of "AD" and "DM"
3) "AM"= 34
Please help me! Thanks!
Click here to see answer by drk(1908)

Question 257424: The equal sides of an isosceles triangle have lengths of (5x – 30) and (3x + 10).
What is the greatest possible integer value of the third side?
Click here to see answer by drk(1908)

Question 257531: if the lengths of 2 sides of a triangle measure 7and 12, the length of the 3rd side could measure?
A)16 or C)3?
Click here to see answer by checkley77(12569)

Question 257557: Thank you in advance. My square quilt block measures 18 inches on the diagonal. What is the length of the sides? What is the formula so I can do this again in future. Regards, Denise
Click here to see answer by rfer(12657)

Question 257256: which characteristics of a polygon could change after a dilation?
Click here to see answer by shahbazn(6)

Question 257796: Find the area of the triangle ABC having vertices A(7,-4) B(3,1) C(-10,-8)
Click here to see answer by Edwin McCravy(8908)

Question 257796: Find the area of the triangle ABC having vertices A(7,-4) B(3,1) C(-10,-8)
Click here to see answer by drk(1908)

Question 257796: Find the area of the triangle ABC having vertices A(7,-4) B(3,1) C(-10,-8)
Click here to see answer by Alan3354(30993)

Question 257934: in a right triangle with the hypotenuse c=10 and the angle A=50 degrees the side b equals?
Click here to see answer by Edwin McCravy(8908)

Question 258080: The midpoints of the side of triangle ABC are labeled D,E, and F. If the perimeter of triangle DEF is 24, find the perimeter of triangle ABC.
Click here to see answer by richwmiller(9135)

Question 258196: the side lengths of the smaller of two similar triangles are 3,4,and 5.The shortest side of the larger triangle is 9.find the lengths of the remaining two sides of the larger triangle
Click here to see answer by richwmiller(9135)

Question 258247: What is the length of a triangle with a area of 16 sq. inches and a width of 8 cm?
Click here to see answer by stanbon(57332)

Question 258450: If a triangle has two short sides that are each three and four inches in length, how long is the longest side?
Click here to see answer by Alan3354(30993)

Question 258450: If a triangle has two short sides that are each three and four inches in length, how long is the longest side?
Click here to see answer by richwmiller(9135)

Question 258497: Question # 1: If two sides of a triangle are 6 and 9, then the third must be between 3 and 15.
Question # 2: Is it possible for the sides of a triangle to be 13, 24, and 11? Why or why not?

Thank you very much! :)
Click here to see answer by checkley77(12569)

Question 258388: One side of a triangle is 18 feet longer that its shortest side. The remaining side is 11 feet less than 3 times the length of the shortest side. Find The dimensions of the triangle if the perimeter of it is 137 feet.
Click here to see answer by checkley77(12569)

Question 258588: I would like to find all sides of a triangle with the perimeter of 64.
Click here to see answer by stanbon(57332)

Question 258581: how would you solve a 45-45-90 degree triangle?
Click here to see answer by Alan3354(30993)

Question 258607: The monongahela incline is 635 feet long with a vertical rise of 369.39 feet. Find the incline of the railroad.
Click here to see answer by stanbon(57332)

Question 258610: Classify triangle ABC by its angles if measure of angle B = 26 and the measure of angle A = 64. thanks heaps ! :)
Click here to see answer by stanbon(57332)

Question 258656: I have a triangle of 10in base and x height. It doesnt give me the diaganol line but it does give me that 10 and x meet at a 90 degree angle and the diaganol and x meet at 60 and of course I figured out the point was 30. How do I solve this?
Click here to see answer by jojo14344(1512)

Question 258829: Describe the possible lengths of the third side of the triangle given the lengths of the other two sides 4 inches, 7 inches
Click here to see answer by Fombitz(13828)

Question 258829: Describe the possible lengths of the third side of the triangle given the lengths of the other two sides 4 inches, 7 inches
Click here to see answer by CharlesG2(828)

Question 258848: I need step by step help on how to solve this problem:
The area of a triangle is 16 inches more than the base. If the height is 6 inches, what is the length of the base? I can find the answer, but I need to know the steps involved.
Thanks!
Click here to see answer by CharlesG2(828)

Question 258676: One side of a rectangle is one foot longer than twice the
other side, and the perimeter is 56 feet.
Click here to see answer by Fombitz(13828)

Question 258935: Given: AC = 24 inches, AB = 2x - 3 inches, x = ____.
Click here to see answer by stanbon(57332)

Question 259062: in triangle ABC with right angle at C angle B=30 and side a = 4 square root 3
Click here to see answer by Alan3354(30993)

Question 259076: How do you find the square footage (area) of a triangle given the 3 sides? What is the formula for that? I think that A=AB*CD but what is D? I am trying to figure out the square footage of a triangle shaped piece of land.
Click here to see answer by rfer(12657)

Question 259257: I would like some assistance in solving a right triangle hypotenuse problem. I have the length of the smallest side; say 4.26 feet of a 20-70-90 triangle. What is the formula to find the hypotenuse?
Click here to see answer by Alan3354(30993)

Question 259271: Which of the following are measurements of the sides of a right triangle?
these are the answers i was given
a)101,99,20
b)28,26,12
c)17,14,6
D)none of the above
Click here to see answer by Fombitz(13828)

Question 259291: The hypotenuse of a right triangle is 8 feet less than three times the shorter leg and the longer leg is 8 feet more than twice the shorter leg. Find the lengths of the three sides of the triangle.
How do I do this? I know a^2+b^2=c^2.
and
3x-8 =shorter
8+2x =longer
Am I setting this up correctly?

Click here to see answer by Fombitz(13828)

Question 259341: Is there a right triangle whose shortest side is half its hypontenuse and whose remaining side is a whole number?
Click here to see answer by Fombitz(13828)

Question 259435: solve and check 13x-99=187
Click here to see answer by stanbon(57332)

Question 259543: the perimeter of a isosceles triangle is 30 in. its base is 8 in. how long are each of the other two sides?
Click here to see answer by stanbon(57332)

Question 259543: the perimeter of a isosceles triangle is 30 in. its base is 8 in. how long are each of the other two sides?
Click here to see answer by drk(1908)

Question 259698: What is the greatest possible area of a triangle with one side length of 8 and another side length of 10?
Click here to see answer by drk(1908)

Question 259677: A triangle has sides 3cm , 5cm and x cm. If the triangle has area 6 cm^2. Find the value of x.
Thank you in advance
Click here to see answer by Branflank101(2)

Question 259914: 1.two sides of a triangle are 10 and 20. Give all the values that the third side c can take i.e find x and y such that x
Click here to see answer by Alan3354(30993)

Question 259982: 1.)Find the values correct to 2 decimal places approximating the length of a in the triangles below:

a.)
x 35 degree
x x
x x a
x x
x x
xxxxxxx
10
Its hard to draw a triangle here trying to make a figure by using x
Click here to see answer by richwmiller(9135)

Question 260192: So i have this big construction project for my geometry class due monday. the assignment is to construct triangles ass, hl, and aas given the attached construction plans. I don't know how to do any of these:/ Please help!!
Click here to see answer by richwmiller(9135)

Question 260312: i have an isosceles triangle. One angle has 3x and the other angle has (x+50).
How to find the third angle
Click here to see answer by drk(1908)

Question 260312: i have an isosceles triangle. One angle has 3x and the other angle has (x+50).
How to find the third angle
Click here to see answer by stanbon(57332)

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