The base of a right angled triangle is 8cm and hypotenuse is 17 cm.find it's area
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Explanation:
By Pythagoras theoram,
H^2 = P^2 + b^2
17^2 = P^2 + 8^2
17^2 - 8^2 = P^2
289 - 64 = P^2
225 = P^2
P = √225
= 15 cm
Area of triangle = 1 / 2 × h × b
= 1 / 2 × 15 × 8
= 1 / 2 × 120
= 60 cm^2
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