Question

Three angles of.qudrileteral are equal.and the fourth angle measures 75degree. find the measures of each of the equal.angles

Answer 1

The sum of angles of quadrilateral is 360
Let angles be a, b, c, d
Given, a=b=c
And, d=75
By formula
a+b+c+d=360
a+a+a+75=360
3a=360-75
3a=285
a=285/3
a=95=b=c