Answer:
if:
r - radius
d - diameter
then d = 40cm
Step-by-step explanation:
since 2r = d
2(20) = d
40 = d
d= 20 cm r= 10 cm
100πcm2. Explanation: Area is πr2. If the diameter is 20 cm then the radius is 10 cm. Substitute 10 into the equation for r .
baliktad po
hope it help's tho tell me if i have a mistake ok?
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Answers & Comments
Answer:
if:
r - radius
d - diameter
then d = 40cm
Step-by-step explanation:
since 2r = d
2(20) = d
40 = d
Answer:
d= 20 cm r= 10 cm
Step-by-step explanation:
100πcm2. Explanation: Area is πr2. If the diameter is 20 cm then the radius is 10 cm. Substitute 10 into the equation for r .
baliktad po
hope it help's tho tell me if i have a mistake ok?