find the area and perimeter of the right angle triangle whose hypotenuse is 5 cm and base is 4 cm
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Hypotenuse = 5 cm
Base = 4 cm
(height)² = (5)² - (4)²
= 25 - 16
= 9
height = √9
= 3 cm .
Area :- 1/2 x base x height
= 1/2 x 4 x 3
= 1/2 x 12
= 6 cm²
Perimeter :- sum of three sides .
= 5 + 4 + 3
= 12 cm .
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