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3 years ago

What is the surface area of a storage box that measures 15 cm x 12 cm x 10 cm

Mathematics

2 answers:

rjkz [21]3 years ago

8 0

I hope this helps you

2.15.10+2.15.12+2.12.10

300+360+240

900

nata0808 [166]3 years ago

6 0

The answer I got was 1800 cm

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What’s the correct answer for this question?

Brut [27]

Answer:

Step-by-step explanation:

First finding height using Pythagoras theorem

(H)²=(B)²+(P)²

8.2²=5.4²+P²

P² = 67.24 - 29.16

P² = 38.08

P = 6.2

Now

Volume of cone = (1/3)πr²h

= (1/3)(3.14)(5.4)²(6.2)

= (1/3)(567.9)

= 189.2 cm³

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2 years ago

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3 years ago

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2 years ago

HELP ASAP!

zaharov [31]

Answer:

Question 1: $115

Question 2: 40 + 25x

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2 years ago

Find the surface area of a cylinder with a base radius of 2 cm and a height of 8 cm

gtnhenbr [62]

Answer:

82.6cm2

Step-by-step explanation:

$\pi {r}^{2} + \pi {r}^{2} + 2 \pi \: r h$

$\pi = \frac{22}{7}$

radius =2cm

height=8cm

$( \frac{22}{7} \times 2 \times 2 )+ ( \frac{22}{7} \times 2 \times 2) + (2 \times \frac{22}{7} \times 2 \times 8)$

Multiplying the numerators and The whole numbers, we have

$\frac{88}{7} + \frac{88}{7} + \frac{402}{7}$

Since the denominators of the fractions are the same, we add the numerators.

$\frac{88 + 88 + 402}{7} = \frac{578}{7} \\ which \: becomes \\$

$82.57{cm}^{2} = 82.6 {cm}^{2}$

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2 years ago