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Plsss help on number 3 (with explanation please)

Plsss help on number 3 (with explanation please)-example-1

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Answer:

2198.9 cm³

Explanation:

Volume of flower vase = volume of cuboid - voume of cone

Volume of cuboid = lbh (length×breath×height) = 12 × 10 × 20 = 2400 cm³

Volume of cone = ⅓ × base area × height

Base area = area of circle = pi radius² = pi 4² = 16 pi

(the diameter of the circle is 8 so to find the radius you just divide it by 2 and you'll get 4)

So,

vol of cone = ⅓ × 16 pi × 12 = 64 pi = 201.06192

Volume of flower vase = 2400 - 201.06192 = 2198.93808 = 2198.9

User Emanuelez
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