In the diagram, PQR is a straight line, QRST is a parallelogram, < TPQ = 72o and < RST = 126o. What type of triangle is \(\bigtriangleup\) PQT?
Attached Figure / Diagram
A
An equilateral triangle
B
A right-angled triangle
C
An isosceles triangle
D
A scalene triangle
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
< TSR =
Source: Myschool Past Questions Archive (Record #36210)