2 years ago

9

Mathematics

1 answer:

aliina [53]2 years ago

7 0

Answer:930

Step-by-step explanation:

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The surface area of door is 33 680 cm².

Step-by-step explanation:

Given that the surface area of a cuboid which is the 3D of rectangle is :

$s.a = 2(l \times w) + 2(l \times h) + 2(w \times h)$

$let \: l = 80 \\ let \: w = 3 \\ let \: h = 200$

$s.a = 2(80 \times 3) + 2(80 \times 200) + 2(3 \times 200)$

$s.a = 2(240) + 2(16000) + 2(600)$

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He answered 41 questions right.

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The surface area of the prism is _____ square units.

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Divide Rs 8100 for three persons in the proportion of 2:3:4

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Step-by-step explanation:

Money = Rs 1800

Ratio = 2:3:4

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