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2 years ago

A circle has a diameter of 28 centimeters. Estimate the area of the circle. Use 22/7

Mathematics

2 answers:

Kitty [74]2 years ago

7 0

Answer:

Area of circle, A = 616 cm^2

Step-by-step explanation:

Area of circle:

A = πr^2

Given: d = 28 cm and π = 22/7

so r = d/2 = 28/2 = 14 cm

A = π r^2

A = 22/7 * 14^2

A = 22/7 * 196

A = 616 cm^2

Delicious77 [7]2 years ago

6 0

Diameter is= 28cm

Radius equals to 14

Area equals to πr*2

So 14*2=196

196π equals to 615.75

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Answer:

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2 years ago

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8_murik_8 [283]

Answer:

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Step-by-step explanation:

The first equation is $x+y=5$

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We can solve the two equations simultaneously to determine their point of intersection.

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$\Rightarrow y=1+2$

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Therefore the graphs of the two functions intersect at (2,3)

See graph in attachment.

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2 years ago