What is the area of an obtuse angled triangle having two sides as 18 m and 24 m and the angle between them as 150°?

- a)78 sq.m
- b)108 sq.m
- c)84 sq.m
- d)96 sq.m

Correct answer is option 'B'. Can you explain this answer?

Related Test: CAT Quantitative Aptitude MCQ - 1

Dinesh Kukreja
answered
Jun 06, 2018

The shortcut method is to use the formula,

area = 1/2 x a x b x sinC

=1/2 x 18 x 24 x sin(150)

=216 x sin(30)

=24

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