Question

It is necessary to put glasses in four circular windows. The radius of each window is 35 cm. Find the value of glass at 2.40 per square meter

Answer 1

Answer:

$ 3.70

Step-by-step explanation:

Find the radius in meter:

Radius = 35 cm = 0.35 m

Find the area of 1 window:

Area = πr²

Area = π(0.35)² = 0.385 m²

Find the area of 4 windows:

1 window = 0.385 m²

4 windows = 0.385 x 4 = 1.54 m²

Find the cost:

1 m² = $ 2.40

1.54 m² = 2.4 x 1.54  = $ 3.70

Answer: $ 3.70

Answer 2

Ans. 369.6₹

Hope it will help....