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Please helppp!! Round to the nearest hundredths

Please helppp!! Round to the nearest hundredths-example-1
User Sulkeh
by
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2 Answers

1 vote

Answer:1385.44mm sq

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

3.142 x 21 squared

User Fakhrul Islam Fuad
by
8.1k points
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)

User Dustin Venegas
by
7.6k points

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