Math, asked by princezpriyalp, 10 months ago

In an isosceles triangle, the base angles are equal. The vertex angle is 40°. What are the base angles of the triangle? (Remember, the sum of three angles of a triangle is 180°).

Answers

Answered by manaswi78
22

Step-by-step explanation:

let the base angles be x...

In triangle ABC

40 + x + x = 180

40 + 2x. = 180

2x = 140

x = 70

base angles = x = 70.....

Hope it is correct

Answered by arijitduttachowdhury
10

Step-by-step explanation:

As the base angles are equal

Let each of these base angles be x°

Vertex angle = 40°

We know that,

Sum of three angles of a triangle = 180°

x°+x°+40° = 180°

x +x+40 = 180

2x +40 = 180

2x = 180-40

2x = 140

x = 140/2

x = 70

The base angles are 70° each.

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