Question

In an isosceles triangle, the vertex angle is 112 degrees. What is the measure of each base.

A.34
B.24
C.44
D.54

Answer 1

A

Explanation:

The base angles of an isosceles triangle are congruent

The sum of the 3 angles in a triangle = 180°, hence

180° - 112° = 68°

base angle =
`(68)/(2)` = 34°

Thus each base angle equals 34° → A