Question

Find the lengths of all three sides of the triangle.

Answer 1

Explanation:

angle J = angle K

Thus :

4x - 12 = 20

4x = 32

x= 8

Sides are = 29 , 20 , 20

Answer 2

JK =29

JL= 20

KL =20

Explanation:

∠KJL ≅ ∠JKL

this is an isosceles triangle therefore

4x-12 = 20

x=8

4(8)-12=20

32-12=20

plug 8 into 3x+5

3x+5 = 29