Please helppp!! Round to the nearest hundredths

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asked Nov 8, 2021 112k views

3 votes

Please helppp!! Round to the nearest hundredths

Mathematics
middle-school

Sulkeh asked

by Sulkeh

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1 vote

Answer:1385.44mm sq

Step-by-step explanation: surface area of a circle = pi x radius squared

3.142 x 21 squared

Fakhrul Islam Fuad answered Nov 11, 2021

by Fakhrul Islam Fuad

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5 votes

Answer:

Explanation:

diameter = 42 mm

radius (r) = 42/2 = 21mm

SA of semicircle = 3πr²

$=3*(22)/(7)*21*21\\\\=3*22*3*21\\\\=4158mm^(2)$

Dustin Venegas answered Nov 15, 2021

by Dustin Venegas

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