Question

(2) To an isosceles triangle, the base angles are
equal. The vertex angle is 60 What are
the base angles of the triangle?
( Remember the sum of three angles of a a
triangle is 180°.)​

Answer 1

Answer :

• The base angles of triangle is 55⁰

Given :

• An iscoscles triangle, the base angles are equal
• The vertex angles is 70⁰

To find :

• The base angles of the triangle

Solution :

• Let the base angles if triangle be x

According To Question, Given That , base of angles of an iscoscles triangle are equal and vertex angles of an iscoscles triangle is 70 so ,

As we know that,

• Sum of three angles of triangle is 180⁰

⇢ x + x + 70 = 180

⇢ 2x + 70 = 180

⇢ 2x = 180 - 70

⇢ 2x = 110

⇢ x = 110/2

⇢ x = 55

Hence, The base angles of triangle is 55⁰

Answer 2

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