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detailed solution

Correct option is A

We know that,

The Heron's formula for calculating the area of the triangle,

Area of triangle =

where, s is the semi-perimeter = half of the perimeter

and  a, b and c are the sides of the triangle

Triangular sides of walls are, a = 122 m, b = 22 m, c = 120 m

Thus, Semi-perimeter

s = (a $+$ b $+$ c)/2

= (122 $+$ 22 $+$ 120)/2

= 264/2

= 132 m

Area of a triangular wall =

= 1320 m

Given that,

Rent of 1 m2 area per year = ₹ 5000

Rent of 1 m2 area per month = ₹ 5000/12

Rent of 1320 marea for 3 months =  (5000/12) $×$ 3 $×$1320

= ₹ 1650000

Hence, the company paid ₹ 16,50,000 as rent.

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detailed solution

We know that,

The Heron's formula for calculating the area of the triangle,

Area of triangle =

where, s is the semi-perimeter = half of the perimeter

and  a, b and c are the sides of the triangle

Triangular sides of walls are, a = 122 m, b = 22 m, c = 120 m

Thus, Semi-perimeter

s = (a $+$ b $+$ c)/2

= (122 $+$ 22 $+$ 120)/2

= 264/2

= 132 m

Area of a triangular wall =

= 1320 m

Given that,

Rent of 1 m2 area per year = ₹ 5000

Rent of 1 m2 area per month = ₹ 5000/12

Rent of 1320 marea for 3 months =  (5000/12) $×$ 3 $×$1320

= ₹ 1650000

Hence, the company paid ₹ 16,50,000 as rent.

+91

Are you a Sri Chaitanya student?