Question

If j || k, what must be the measure of the angle

marked x?
45°
A. 45°
56°
B. 56
B
C. 74°
56
D. 79

Answer 1

D. 79°

Explanation:

The value of x has no relationship with the lines being parallel. That is ensured by the angle to the left of x being 56°.

The total of 56°, x, and 45° must be 180°, as together they form a linear angle.

x = 180° -56° -45°

x = 79°