Question

The lengths of the sides of a triangle are 3x, 5x – 12, and x + 20. Find the value of x so that the triangle is isosceles.

Answer 1

x=10.

Answer 2

You're really smart ahaha. Thank you!

Answer 3

Thank you :)

Answer 4

and glad to help.

Answer 5

How do I show work for that..? Hahah Like how did you do that?

Answer 6

I think there are actually 3 values for x that work

Answer 7

isosceles triangles have 2 sides the same length, so set any 2 sides equal to each other and solve for X.

Answer 8

I solved \( 3x = x+20 \)

Answer 9

Thankss :)

Answer 10

Wait but doesn't x have to be just two different answers

Answer 11

no you get 3 i believe

Answer 12

moneybird you got the first one wrong, it's 8

Answer 13

4x = 32

x = 8

Answer 14

x can be equal to 8, 10, or 6