Question

Find the area of circle whose diameter is 42 CM.​

Answer 1

Step-by-step explanation:

Solution:

Diameter of circle = 42 cm

➜ Radius of circle = 1/2 × 42

➜ Radius of circle = 21 cm

Formula used here:

Area of circle = πr²

Putting the values:

➪ Area of circle = 22/7 × 21 × 21

➪ Area of circle = 1386 cm²

Therefore:

The area of the circle is 1386 cm².

Answer 2

Step-by-step explanation:

Assertion(A): The Himalayas acts as a climatic barrier.

Reason(R) : The Himalayas prevents cold winds from central Asia and keep the

Indian Sub - Continent warm.

a) Both (A) and (R) are true: R explains A

b) Both (A) and (R) are true: R does not explain A

c) (A) is true (R) is false

d) (A) is false (R) is true

22/7×42×42

=22×6×42

ANSWER