In the diagram, PQRST is a regular polygon with sides QR ...
In the diagram, PQRST is a regular polygon with sides QR and TS produced to meet at V. Find the size of < RVS
36o
54o
60o
72o
Correct answer is A
PQRST is a regular polygon with 5 sides-pentagon n = 5, Each exterior angle = 360on
= 3505 = 70o
Each interior angle = 180 - 72o
(< s on str. line) = 180o
Since the pentagon is regular, the exterior angles are equal < R = 72o and < S = 72o
< RVS = 180o - (< R + < S)
= 180o - (72o + 72o)
= 180o - 144o
= 36o
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