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3 years ago

9

A rectangular blanket’s perimeter is 210 inches. If the long sides of the blanket measure 60 inches, what is the length of the s

horter sides of the blanket?

1 answer:

Annette [7]3 years ago

7 0

45 because you do 210-120 which is 90. 90÷2 is 45. -JZ

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Part 1) The volume of the paperweight is $576\ cm^{3}$

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Step-by-step explanation:

Part 1) what is the volume of the paperweight?

we know that

The volume of the paperweight is equal to the volume of the square pyramid plus the volume of the cube

step 1

Find the volume of the pyramid

The volume of the pyramid is equal to

$V=\frac{1}{3}BH$

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B is the area of the square base

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Part 2) what is the total surface area of the paperweight?

we know that

The total surface area of the paperweight is equal to the surface area of 5 faces of the cube plus the lateral area of the pyramid

step 1

Find the surface area of 5 faces of the cube

$SA=5b^{2}$

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step 2

Find the lateral area of the pyramid

$LA=4[\frac{1}{2}bh]$

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step 3

Find the total surface area of the paperweight

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