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Please help me thanks!!!!!!!

Please help me thanks!!!!!!!-example-1
Please help me thanks!!!!!!!-example-1
Please help me thanks!!!!!!!-example-2

1 Answer

1 vote

Answer:

See below ~

Explanation:

Subpart (a) :

⇒ Surface area = 2(3 × 4 + 4 × 5 + 3 × 5)

⇒ Surface area = 2(12 + 20 + 15)

⇒ Surface area = 2(47)

⇒ Surface area = 94 in²

===============================================================

Subpart (b) :

⇒ Volume = 3 × 4 × 5

⇒ Volume = 12 × 5

⇒ Volume = 60 in³

=============================================================

Subpart (c) :

⇒ New surface area = 2 x 94

⇒ New surface area = 188 in²

=============================================================

Subpart (d) :

⇒ New : Original

⇒ 188 : 94

2 : 1

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