Question

two angles of a quadrilateral are each 90 degree and remaining two angles are such that one is 3 times the other. find these two angles .

Answer 1

Answer:

let them be x and 3x

thus,

90° + 90°+ x +3x = 360°

x = 45°

3x = 135°

Answer 2

Answer:

sum of angles in quadrilateral is 360degrees(sum of 4 angles)

here given 2 angles each as 90 degrees

thereforesum of 2 angles is 180degrees

3rd angle =x

4th angle =3x

sum of total 4 angles=

=x+3x+180=360

4x=360-180

4x=180

x=180

4

x=45

therefore,3rd angle is 45degrees and 4th angle is 3x=3×45=135 degrees