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Question

The hypotenuse of a right-angled triangle measures 6.5 m and its base measures 6 m. Find the length of perpendicular and hence, calculate the area of the triangle.

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Solution

Hypotenuse = 6.5 m
​Base = 6 m
In a right-angled triangle,
Hypotenuse2=Base2+Perpendicular2 6.52=62+ perpendicular2 6.52-62=perpendicular2 perpendicular2=(6.5-6)(6.5+6) perpendicular2=0.5×12.5perpendicular2=6.25 perpendicular=2.5 m

Area of triangle = 12×base×perpendicular

= 12×6×2.5= 7.5 m2

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