Question

please help me in solving question number 6th fast

Answer 1

Given, Area of a triangle = area of square

Length of the side of the square = 30 m.

Altitude of triangle = 90 m.

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Area of square = (side)² = (a)² (where a is the length of the side of a square)

Area of square = (30)² = 30 x 30 = 900 m²

Area of a triangle = area of square = 900 m²

Area of triangle = 1/2 b x h (where b is the base and h is the height or altitude of triangle)

or, 1/2 * b * 90 = 900

or, 90b = 1800

or, b = 1800/90

or, b = 20

Hence base of the triangle is 20 m.

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Answer 2

$area \: of \: square \: is \: 30 \times 30 = 900cm ^{2} . \\ so \: area \: of \: triangle \: is \: 900cm ^{2} . \\ base \: of \: the \: triangle \: is \: \frac{900}{90} \times 2 = 20cm$
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