Question

In a triangle one of the angles is 90° and two sides are of same length. The triangle
is​

Answer 1

Answer:

isosceles triangle

Step-by-step explanation:

given that,

a1=90° and a2=a3 (because the two sides are equal so, the angle will also be equal)

let a2=a3=x

we know that,

the sum of all the sides of a triangle is 180°

a1+a2+a3=180°

90°+x+x=180°

90°+2x=180°

2x=180°-90°

2x=90°

x=90°/2

x=45°

a2=a3=45°

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