179k views
3 votes
Find the value of x. *
43°
99°
2x°
A.28
B22.5
C.19
D.71

Find the value of x. * 43° 99° 2x° A.28 B22.5 C.19 D.71-example-1

1 Answer

5 votes

Answer:

A

Explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

99° is an exterior angle of the triangle , then

2x + 43 = 99 ( subtract 43 from both sides )

2x = 56 ( divide both sides by 2 )

x = 28

User Soundbytes
by
8.2k points