Find the value of m in the diagram
-
A.
34o -
B.
27o -
C.
23o -
D.
17o
Correct Answer: Option D
Explanation
(bigtriangleup) ABC, A + 153 = 180 (angles on straight line)
i.e. 27 + 2m + 7m = 180o
9m = 180 – 27
9m = 153
m = (frac{153}{9})
= 17
(bigtriangleup) ABC, A + 153 = 180 (angles on straight line)
i.e. 27 + 2m + 7m = 180o
9m = 180 – 27
9m = 153
m = (frac{153}{9})
= 17