Question

The three angle of a triangle are 57, 62, 61, vriify the angle the angle sum property of the triangle

Answer 1

given angles :57° , 62° and 61 °

let us consider the sides of the triangles as a, b and c

let angle at side a = 57°,

let angle at side b = 62 °

and at side c = 61°

FORMULA FOR ANGLE SUM PROPERTY OF A TRIANGLE :

Sum of the angles of the 3 sides of the triangle = 180°

ie , a+b+c = 180

LHS = a+b+c

Now substituting the values of the angles , we get

LHS = 57+62+61

LHS = 180°

= RHS

HENCE PROVED ....