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Asked by Durgesh Last Modified
Answer By Heron’s formula,
Area of the triangular wall
=√ 132 ( 132 - 120 ) ( 132 - 122 ) ( 132 - 22 )
√ 132 × 12 × 10 × 110 = √ 11 × 12 × 12 × 10 × 10 × 11 = 11 × 10 × 12 = 1320m².
Rent on 1320m² in one year
= Rs. ( 1320 × 5000 ) = Rs.66,00,000.
Rent in 3 months = Rs. ( 66,00,000 × 3/12 )
= Rs. 16,50,000.
∴ the company paid Rs. 16,50,000.
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Gautam Pal
Maths Teacher for classes 6th to 10th with 6 years experience and having my own YouTube Channel for clearing doubts
The area of the triangle is 1320 m². (Using Heron's formula)
Now, earning per m² is Rs.5000/- per year. So, earning on 1320 m² will be Rs. 66,00,000/- per year (Using Direct Variation)
Now, earning on 1320 m² is Rs. 66,00,000/- per year (i.e. 12 months). So, earning on 1320 m² will be Rs. 16,50,000/- for 3 months. (Using Direct Variation)
So, the rent paid by the company is Rs. 16,50,000/-.
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Related Questions
A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board?
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