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प्रश्न
In a ∆ABC, if a = 12 cm, b = 8 cm and C = 30°, then show that its area is 24 sq.cm
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उत्तर
In ∆ABC Given
a = 12 cm,
b = 8 cm,
C = 30°
Area ∆ = `1/2` ab sin C
= `1/2 xx 12 xx 8 xx sin 30^circ`
= `6 xx 8 xx 1/2`
= 6 × 4
= 24 sq.cm
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