Anyone know what A equals to
A is 100 degree.Angle QRP= 180 degree - 140 degree = 40 degreePQ=RQ so the triangle is a isoceles triangle.Hence, angle b is also 40 degree.Angle a = 180 deg - 40 deg- 40 deg = 100 degree
a = 90 degrees
As it is a characteristics of right isosceles triangle.....
