Question

4. In an isosceles triangle, the base angles are equal and the vertex angle is 40°. What are the base angles of the triangle?
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Answer 1

Answer:

70°

Step-by-step explanation:

In triangle ABC,vertex angle =40

according to angle sum property= x+x+angle C =180

x+x+40°=180

2x=180-40=140

x=140/2=70°

There fore,the base angles are 70°