2 years ago

Find the area of a circle whose diameter is 7cm

Mathematics

2 answers:

dimulka [17.4K]2 years ago

7 0

Answer:

38.5 cm^2

Step-by-step explanation:

Diameter ( d ) = 7 cm

Radius ( r ) = 7 / 2 cm

Formula : -

Ar ( circle ) = π r^2

π r^2

= ( 22 / 7 ) x ( 7 / 2 )^2

= ( 22 / 7 ) x ( 49 / 4 )

= 38.5 cm^2

vodka [1.7K]2 years ago

4 0

Answer:

3.5pi

Step-by-step explanation:

just multiply together and you'll get your answer

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Find the area of a circle whose diameter is 7cm​

Find the area of a circle whose diameter is 7cm