To calculate:

Answer to Problem 28PSC
Explanation of Solution
Given information: Given that TRAPis an isosceles trapezoid. Also,
…………………………. (i)
Concept used:
(a) Isosceles trapezoid has two equal smaller
(b) Sum of all the angles of any quadrilateral is
Calculation:
As TRAPis an isosceles trapezoid which means it has two equal smaller angles and two equal larger angles,
i.e.,
We know that sum of all the angles of any quadrilateral is
Using equations (ii) and (iii) in equation (iv) to get,
Dividing the above equation by 2,
Using equation (i) in (v) to get,
Now using the calculated value of
As we know
So,
Also,
then,
from equations (vi) and (vii) we have,
Finally, we have
By using equation (iii) we get,
Hence,
Chapter 5 Solutions
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