The length of one side of a right angled triangle is 4.5 cm and the length of its hypotenuse is 7.5 cm .Find the length of its third side.
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Using Pythagoras' theorem,
a² + b² = c²
4.5² + b² = 7.5²
b² = 7.5² - 4.5²
b² = 36
b = √36
b = 6
Answer: The third side is 6cm
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Answer:
x²=(7.5)²- (4.5)²
= (7.5)+(4.5) × (7.5) - (4.5)
= (12×3)
=36
= 6².(ANS)
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