3 years ago

P is in the shape of a circle q is in the shape of a quarter circle of radius 20cm

Mathematics

1 answer:

Sergio [31]3 years ago

8 0

Answer:

5 cm

Step-by-step explanation:

Area of circle P with radius r:

A = πr²

Area of quarter circle Q with radius 20 cm:

A = 1/4π*20² = 100π

Area of Q is 4 times the area of P:

4*πr² = 100π
r² = 25
r = √25
r = 5 cm

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nirvana33 [79]

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Step-by-step explanation:

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3 years ago

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3 years ago

Read 2 more answers

A polling company reported that 5353% of 10181018 surveyed adults said that rising gas prices arerising gas prices are "quite a

Sophie [7]

Answer: 540

Step-by-step explanation:

Given: A polling company reported that 53% of 1018 surveyed adults said that rising gas prices are "quite annoying."

To find: The exact value of 53% of 1018.

$53\%\text{ of }1018 = \dfrac{53}{100}\times1018$ [we divide a percentage by 100 to convert it into a fraction of decimal]

$=\dfrac{53954}{100}=539.54\\\\\approx540$

Hence, the 540 adults said that rising gas prices are "quite annoying."

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