Question

In a isosceles triangle the base angles are equal the vertex angle is 40 if the sum of three angles of a triangle is 180 what are the base angles of the triangle​

Answer 1

base angles measures 70° each

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Answer 2

Answer:

Mark brainliest answer.

Step-by-step explanation:

→ In an isosceles triangle :

→ Let the base angle be x.

→ Two base angle so,

→ x + x

→ 2x

→ One angle is 40°

→ We know sum of all angles of triangle is 180 degree.

→ x + x + 40 = 180

→ 2x + 40 = 180

→ 2x = 180 - 40

→ 2x = 140

→ x = 140/2

→ x = 70

→ So the base angles of triangle are 70° and 70°.