Question

Find the value of y in the rhombus below.

Answer 1

1. Each diagonal of a rhombus bisects opposite angles.

2. The sum of the measures of the angles of a polygon is (n - 2)180 where n is the number of sides.

(n - 2)180 =(4 - 2)180 =360

At S  Angle is 30+30 =60

At R  Angle is y+y =60

y =30