|✓| A circle field of diameter 42 m needs to be cleaned. if the cost of cleaning the field is Rs. 2.35 per m2, find the cost of cleaning the field?
Answers
Diameter of the circle = 42 m
Cost of cleaning per m² = ₹2.35
Cost of cleaning the whole field
where,
r = Radius
According to the question by using the formula of Area of a Circle, we get,
Solving the above equation,
Cost of cleaning the field = ₹ (1,386 × 2.35)
Step-by-step explanation:
★
Given :-
Diameter of the circle = 42 m
Cost of cleaning per m² = ₹2.35 ★ToFind :-
Cost of cleaning the whole field
★ Formula Used :-
Area of a circle = πr
2
where,
r = Radius
π= 7/22
★ Solution :-
Radius = 2
Diameter =2/42
=> 21 m
}Radius = 21 m
According to the question by using the formula of Area of a Circle, we get ⇢ Area of circular field=(π×212 ) m²
Solving the above equation,
⟹ (7/22×212 ) m²
⟹ ( 7/22×21×21) m²
⟹ ( 7/22×441) m²
⟹ ( 7 1 22 × 441 63 ) m ²
⟹ (22×63) m²
⟹ 1,386 m²
Area of the circular field = 1,386 sq. m.
Cost of cleaning the field = ₹ (1,386 ×2.35)
⟹ Rs. 3257.1
Cost of cleaning the field is Rs. 3257.1