Question

In an isosceles triangle , if the angle at the vertex is 70 degree , then determine the other two angles opposite to the equal sides​

Answer 1

Answer :

• 40⁰ and 70 ⁰

Given :

• If the angle at the vertex is 70⁰ degree then determine the other two angles opposite to the equal sides.

Solution :

Let the third angle be x

As we know that :

• sum of all angles of triangle is 180⁰

➻ 70 + 70 + x = 180

➻ 140 + x = 180

➻ x = 180 - 140

➻ x = 40

Hence the other two angles opposite to the equal sides are 40⁰

More Explanation:

• iscoscles triangle is nothing but the triangle whose two sides are equal
• Isosceles triangle are opposite angle of equal sides are equal
• so it measures 70⁰

Answer 2

Answer:

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nathasha6

10.09.2019

Math

Secondary School

answered • expert verified

one of the equal angles of an isosceles triangle is 70 degree find the measure of other two angles of the triangle

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The measure of other two angles of the triangles are 40° and 70° .

Step-by-step explanation:

One of the equal angles of an isosceles triangle is 70 degree

Isosceles triangle : The triangle whose two sides are equal .

Opposite angles of equal sides are equal .

So,Equal angles measures 70 degree

Let the third angle be x

Sum of all angles of triangle is 180°

So,70+70+x=180

140+x=180

x=180-140

x=40

Hence the measure of other two angles of the triangles are 40° and 70° .

Step-by-step explanation:

Hope this answer will help you✌