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Class 9-10, JEE & NEET
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The area of a ΔABC is 8 cm2 in which AB = AC = 4 cm and ∠A = 90°.
We have, ABC is a right angled triangle at A, where sides are given AB = AC = 4 cm
∴ Area of a triangle ABC = ½ (Base x Height) = ½ x AC x AB=½ x 4 x 4=8 cm2