A circular carpet of diameter1•4m is spotted in the centre with 20cm. Find the area of the striped portion of the carpet to the nearest cm²
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Answer:
33000/7 cmsquare
Step-by-step explanation:
Let 1.4m = 140 cm
Radius 140/2 = 70 cm
Extra strip is of diameter
= 20 cm/2.
Radius 10 cm
Therefore, Radius for outer circle = 80 cm
Area of that path or strip
22/7 X R² - 22/7 × R square
22/7 (R² - r²)
22/7 (80+70) (80 - 70)
22/7 x 150 cm x 10 cm
33000/7 cm²
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