Question

Need help fast hs geometry

Answer 1

• Measure of angle C = 100°
• Measure of angle A = 40°
• We know, sum of all angles of a triangle is 180°.
• Therefore, the measure of angle B

= [180 - (100 + 40)]° = 40°

• When two angles of a triangle are equal, then the triangle is isosceles.
• Here, the measure of angle A and B are equal, i.e., 40°
• So, ∆ABC is an isosceles triangle.

Answers:

1. 40°
2. Yes

Hope you could get an idea from here.

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