Question

find the cost of levelling the ground in the form of a triangle having its side 90m 70m and 70m at rupees 5 per square metre​

Answer 1

Answer: ₹12,037.5

Step-by-step explanation:

Attached …… hot this may help u ❤✔

Answer 2

GIVEN :-

• Rate of levelling the ground = Rs. 5/m²
• Sides of triangle = 90 m , 70 m , 70 m.

TO FIND :-

• The cost of levelling the ground.

SOLUTION :-

❂ Perimeter = Sum of all sides

⇒ 90 m + 70 m + 70 m

⇒ 90 m + 140 m

⇒ 230 m

❂ Semi perimeter (s) = perimeter/2

⇒ 230/2

⇒ 115 m

❂ Area = √s(s-a)(s-b)(s-c)

⇒ [√115(115 - 90)(115 - 70)(115 - 70)]

⇒ [√115 × 25 × 45 × 45]

⇒ √5821875

⇒ 2412 . 86 m²

❂ Cost of levelling = Area × rate

⇒ 2412.86 × 5

⇒ Rs.12064.3

Hence cost of levelling is Rs. 12064.3