In Δ ABC ,sides BC = 10 cm and height AD = 4.4 cm. If AC = 11 cm. Then altitude BE equals?

5 cm
4 cm
5.6 cm
5.5 cm

Correct Answer: 4 cm

Explanation:

We know that area of triangle = ( base x height ) / 2
So area of triangle = (BC x AD) / 2 = (AC x BE) / 2
⇒ (10 x 4.4) / 2 = (11 x h) / 2
⇒ h= (10 x 4.4)/11 = 4 cm

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