In the figure PQR a straight line segment, PQ = QT. Triangle PQT is an isosceles triangle, o and o. Calculate the value of
-
A.
50o -
B.
25o -
C.
55o -
D.
45o
Correct Answer: Option C
Explanation
o (PQ = QT)o) = 50o (sum of interior angle)o
50o + 75o + o = 125o + oo – 125o = 55o