Question

Two angles of triangles are equal and it's third angle is double of the equal angle find the measure of the three angle of the triangle ​

Answer 1

Solution=>

Let measure of two of its equal angles be x°

And, third angle be y°

Then, x°+x°= y°

But, according to angle sum property of a triange,

Sum of all angles of a triangle = 180°

So, x°+x°+y°= 180°

=> y°+y° = 180°

=> 2y° = 180°

Therefore, y = 90°

Hence, other angles are 45°

We can call this angle as Right isosceles triangle.

Answer 2

Answer:

90 degree

Step-by-step explanation:

we know ,

sum of all sides is 180 degree

let equal sides be x

the third side is twice the x

hence,

     x+x+2x=180

             4x=180

                x=180/4

                 x=45

third side is 2x = 2 × 45 = 90