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ehidna [41]
3 years ago
14

Unit 2 Lesson 2:Surface Area

Mathematics
1 answer:
seropon [69]3 years ago
6 0
Part 2) <span>What is the surface area of this cube?
we know that
surface area of a cube=6*b</span>²
where b is the length side of a cube
in this problem
b=15 mm
so
surface area of a cube=6*15²----> 1350 mm²

the answer Part 2) is 1350 mm²

Part 3)  What is the surface area of this cube?
we know that
surface area of a cube=6*b²
where b is the length side of a cube
in this problem
b=11 cm
so
surface area of a cube=6*11²----> 726 cm²

the answer Part 3) is 726 cm²

part 4) <span>What is the surface area of the rectangular prism represented by the net?

surface area=2*16*6+2*16*8+2*6*8----> 544 cm</span>²

the answer Part 4) is 544 cm²

Part 5) <span>What is the surface area of the wood block?
surface area=5*5+4*[5*8]/2----> 25+80----> 105 in</span>²

the answer part 5) is 105 in²
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