Question

EFGH is a rectangle. Find the value of x. What is the measure of ZEFH?​

Answer 1

Answer:

Since we know that alternate interior angles between two parallel lines are equal, 2x + 10 = 3x - 20

=> 2x - 3x = - 20 - 10

=> - x = - 30

=> x = 30

NOTE: Negatives on both sides cancel out to give a positive equation.

Answer 2

Answer:

x=30

Step-by-step explanation:

since we know that alternate interior angles between two parallel lines are equal 2x+10=3x-20

2x-3x=-20-30

-x=-30

both negative sign are cancel

x=30