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3 years ago

6

The diameter of a circle is 8 ft. Find its area in terms of pi

2 answers:

aev [14]3 years ago

4 0

Answer:

d = 2r => r = d/2 = 8ft/2 = 4ft

A = π·r²

= π·(4ft)²

= 16π ft²

= 16×3.14 ft²

= 50.24 ft²

WITCHER [35]3 years ago

3 0

Answer:

16π

Step-by-step explanation:

Area = πr²

r - radius

r = d/2 = 8/2 =4

Area = 4²π = 16π

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3 years ago

Pls solve the simultaneous equation in the attachment.

siniylev [52]

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Part b) The solutions are the ordered pairs (7,3) and (15,1.4)

Step-by-step explanation:

Part a) we have

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Part b) we have

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Solve the quadratic equation by graphing

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see the attached figure

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3 years ago