chapter Surface Areas and volumes , help me in this question please
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Answer:
2200 cm^2
Step-by-step explanation:
Diameter of the base of lampshade, d = 20 cm
radius r = d/2 = 20/2 cm ;
height = 30 cm
Margin over the top and bottom = 2.5 cm + 2.5 cm = 5 cm
Hence total length of the cloth used
h = 30 cm + 5 cm
h = 35 cm
The cloth required for covering the lampshade = 2πrh = 2 X 22/7 × 10 × 35
= 2200 cm^2 Answer...
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Answer:
hlo
kive ho.
ki krde ve tuc
tuhandi intro jii
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