Question

one of the two equal angles of an isosceles triangle measure 55degree. find the measure of all the triangles


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Answer 1

Answer:

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Step-by-step explanation:

Given,Two angles of the triangles are equal.

Let ABC be the triangle.

Angle A = Angle B

Therefore, Angle A = Angle B = 55°

Now, Applying Angle Sum property for triangles;

Angle A + Angle B + Angle C = 180°

=> 55 + 55 + Angle C = 180

=> 110 + Angle C = 180

=> Angle C = 180 - 110

=> Angle C = 70

Hence, the other two angles will be 55° and 70°

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Answer 2

Given,

one of the equal angle of an isocleles ∆ =55°

As it is an isocleles triangle we can say that another angle is equals to 55°

55+55=110°

As by the sum.of all the angles of the triangle property we can get the third angle

180°-110°=70°

so,the three angles of the triangle are

55°,55°,and 70°