h156976 h156976
  • 02-02-2022
  • Mathematics
contestada

Find the area of a circle with : (vi) circumfernece = 66 cm

Respuesta :

prachidhruw07
prachidhruw07 prachidhruw07
  • 02-02-2022

Answer:

7.07 cm

Step-by-step explanation:

we know,

circumference = 2πr

so,

2 × 22/7 × r = 66

44r = 66×7 = 462

r = 462/44 = 1.5

therefore, radius of the circle is 1.5 cm.

now,

we know , area = πr²

so,

22/7 × (1.5)²

22/7 × 2.25

49.5/7

7.07 cm (approx)

therefore, area of the circle is 7.07 cm (approx.)

hope this answer helps you!

Answer Link

Otras preguntas

five more than s squared
What might have been some of the reasons people began moving around the world
what is two thirds the square of a number
How did political debate in America change inthe years after 1774?
(3 ten thousands 2 thousands) x 10
When did Vasco DA Gama die
How do you calculate velocity?
The rise of China’s naval power under Admiral Cheng-Ho occurred during the _______ dynasty. A. Ming B. Zhou C. Qin D. Tang
Which expression could be a calculator’s display for the number 135,000,000,000,000? A. 0.135e15 B. 1.35e14 C. 13.5e13 D. 134e−14
It is often easier to determine if an object or organism possesses the characteristics of life rather than life itself. a. true b. false