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प्रश्न
In Fig. 3, the area of triangle ABC (in sq. units) is:
विकल्प
(A) 15
(B) 10
(C) 7.5
(D) 2.5
MCQ
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उत्तर
Construction: Draw AM ⊥ BC.
It can be observed from the given figure that BC = 5 unit and AM = 3 unit.
In ΔABC, BC is the base and AM is the height.
∴ Area of triangle ABC = `1/2xx`base x height
`=1/2xxBCxxAM`
`=1/2xx5xx3` sq.units
=7.5 sq.units
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