Question

2. A room has two rectangular walls of dimensions 20 16 feet and two square walls of dimensions
16 x 16 feet. One of the square walls has a door of dimensions 8 3 feet. Find the cost of
painting the room at the rate of Rs 0.5 per square feet:​

Answer 1

Answer:

The rectangular walls area= 20×16=320 feet²

The square walls area= 16²= 256 feet²

The total area of the four walls = 2(320+256)=1152 feet²

doors area = 8×3=24 feet²

so, 1152-24 = 1128 feet²

the total cost = 1128×0.5= 564/- Ans

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Answer 2

Answer:

₹564

Step-by-step explanation:

area of rectangle = length* breadth

so that = (20*16)2 = 640

area of square = a^2

sq= (16^2)2= 512

area of door length *breadth

8*3=24 which substract from one wall therefore

512-24=488

and total area which is to be paint = 640 + 488 =

1128 and cost of painting = 0.5*1128=

₹564

I hope u will understand calculation check kar liyo bhai.. formula thik hai