area of circle is 49 pi sq mts then its perimeter is
Answers
ANSWER:--------
given area of the circle = 49m²
formula to find the area of a circle is πr²
therefore πr² = 49m²
→ 22/7 × r² = 49m²
→ r² = 49 × 7/22
→ r² = 343/22
→ r² = 15.5 (approximately)
→ r = √15.5
→ r = 3.9cm (approximately)
hence, it's circumference = 2πr
= 2 × 22/7 × 3.9
= 171.6/7
= 24.5cm (approx)
T!–!ANKS!!
Answer: Perimeter: 44m
Step-by-step explanation:
Area of the circle is given as 49 pi sq m
Formula for finding out the area of a circle is:
Area= pi r2 , where r - radius of the circle.
Here, pi r2= 49 pi
So, r2 = 49 ; r= 7m
Formula for finding out the perimeter or circumference of a circle:
Perimeter= 2 pi r
= 2 pi × 7 m
= 14 pi m
Putting the value of pi as 22/7:
Perimeter= 14× 22/7 m = 44m.
Therefore, the perimeter of the given circle can be noted as 44m.