Answers
Answer:
please mark as brainliest
Area and Perimeter Formula Chart
Figures Area Formula Variables
Area of Rectangle Area = l × w l = length w = width
Area of Square Area = a2 a = sides of the square
Area of a Triangle Area = 1/2 b×h b = base h = height
Area of a Circle Area = πr2 r = radius of the circ
Step-by-step explanation:
a. The area of a floor = length × breadth
length = 12m breadth = 9m
∴ Area of a floor = length × breadth
= 12 × 9
= 108 sq. m
b. Length = 4.5 m= L
Breadth = 3 m = B
Cost of cleaning the carpet at the rate of rs. 50 per m.sq.
Area of carpet =
Area of rectangle = L × B
= 4.5×3
=13.5 m.sq
Rate of cleaning = 50 rs per sq. meter
=13.5×50
= Rs. 675
c. Length of the Rectangular park (l) = 120m
Breadth of the Rectangular park (b) = 80m
Perimeter of the Rectangular park = 2× (l+b)
= 2 × (120+80)
= 200 m
∴ The cost of fencing = Rs. 2
∴ The cost of fencing 200 m = 200 × 2 = RS. 400
PLEASE MARK ME AS BRILLIANTEST !!!