Sei86idn
Answered

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SOMEONE HELP!!!

a) Find the Area of a circle with diameter of 19cm

b)Find the diameter of a circle with Area of 1000 square centimeters

Sagot :

SwostikRajJoshiidn

Step-by-step explanation:

a) here,

diametre = 19 cm

Area = ?

Now,

Area = pie d

= 22/7 *19

59.71 cm2

Therefore, area = 59.71 sq.cm.

b)

here,

Area = 1000 sq.cm

diametre = ?

Now ,

Area = pie d

1000 = 22/7 *d

7000 = 22 * d ( cross multiply between 7&1000)

7000/22 = d

318.18 = d

Therefore, diametre = 318.18 cm .

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