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7]19.In the given figure, three circles each of radius 3.5 cm aredrawn in such a way that each of them touches the othertwo. Find the area of the shaded region.Use TT 22 and 3 1.732]7 |
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Answer» Area which is enclosed in between these three circles = area of equilateral triangle - area of sectors= Ar(ABC) - 3(area of sector) = √3/4 r² - 3(∅/360)(πr²) = (√3/4) - 3(60/360)(22/7)(3.5)²= (√3/4) - (1/2)(22)(7/4)= (√3/4) - (77/4)= (√3 -77)/4 cm² |
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