Answered

Find the Circumference and the area of a circle if:

d= 3cm
d= 6cm
r= 1.25cm
d= 10dm
r= 2.5m

Sagot :

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Solution:

C = π × d

C = 3.14 × 3

C = 9.42 cm

C = π × d

C = 3.14 × 6

C = 18.86 cm

C = 2 × π × r

C = 2 × 3.14 × 1.25

C = 7.85 cm

C = π × d

C = 3.14 × 10

C = 31.4 dm

C = 2 × π × r

C = 2 × 3.14 × 2.5

C = 15.7 m

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