In an isosceles triangle, the measure of base angle is 47°. Find the

1.	In an isosceles triangle, the measure of base angle is 47°. Find the measure of the vertex angle.
Answer» Answer: 86° Step-by-step EXPLANATION: In an isosceles triangle, measure of BASE angle= 47° We know that in an isosceles triangle MEASUREMENT of base angle is equal. By angle SUM property of a triangle- Base angle + base angle + VERTEX angle = 180° 47° +47°+vertex angle= 180° 94°+ vertex angle = 180° Vertex angle = 180- 94= 86°

In an isosceles triangle, the measure of base angle is 47°. Find the measure of the vertex angle.

Answer»

Answer:

86°

Step-by-step EXPLANATION:

In an isosceles triangle,

measure of BASE angle= 47°

We know that in an isosceles triangle MEASUREMENT of base angle is equal.

By angle SUM property of a triangle-

Base angle + base angle + VERTEX angle = 180°

47° +47°+vertex angle= 180°

94°+ vertex angle = 180°

Vertex angle = 180- 94= 86°