Question

Help pleaseeeeee!!?’dndjfjcjdc

Answer 1

answer: 50°

If triangle is isosceles than L and J are same angles

3x + 20 = 4x + 10

3x-4x=10-20

-x = -10 (divide both sides by -1)

x=10

angle L=J = 3*10+20= 50

we can calculate it like this too 4*10 +10= 50