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30.01.2020 •
Mathematics
The perimeter of a quarter circle is 3.57 cm. what is the quarter circles area?
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Ответ:
EducationReligious 2nd LanguageAudioGamesFind us on Facebook KS3 BitesizeMore BitesizeBBC TeachersHome > Maths > Geometry and measures > CirclesPrint
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1234BackNextSemi-circles and quarter circlesThe perimeter of a semi-circle can be found by using the equation π x r², which is commonly used to calculate the area of a whole circle:
area of a semi-circle: 1/2 x π x r2area of a quarter circle: 1/4 x π x r2perimeter of a semi-circle: π x r + 2 x rperimeter of a quarter circle: 1/2 x π x r + 2 xОтвет:
Sorry but I really dnt knw da answer