Question

In an isosceles triangle, the vertical angle is 40°. Find the other two angles of the triangle.​

Answer 1

Answer:

Let the two base angles be x

so 40+x+x=180

40+2x=180

2x=140

x=70

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Answer 2

Answer:

The other 2 angles each measure 70 degree.

Step-by-step explanation:

We know that base angles of isosceles triangle are equal. Hence, let them be x degree each.

According to angle-sum property of a triangle,

40 + x + x = 180

40 + 2x = 180

2x = 180 - 40

2x = 140

x = 140/2

x = 70

Hence each base angles measures 70 degree.

Hope it helps.

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