Question

1. given the isosceles triangle, find the value of y.

a. 16
b. 82
c. 98
d. 62

Explanation:

Step1: Find the adjacent interior angle

The adjacent interior angle to \(98^{\circ}\) is \(180^{\circ}-98^{\circ}=82^{\circ}\)

Step2: Use the property of isosceles triangle

Since it is an isosceles triangle, the two base angles are equal. So \(y = 82^{\circ}\)

Answer:

B. 82