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NNADVOKAT [17]
3 years ago
7

The height of a prism with equilateral triangular base is 25 cm. If the perimeter of the base of the prism is 18 cm, find the vo

lume​
Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer:

450cm^{3}

Step-by-step explanation:

The volume of prism is Base times the height.

The Base you count from surface area. The formula is a*b/2. The a is 18/3, because you have the equilateral triangle. So you count 6*6/2 and get 18 square cm.  

After that you just multiply 18 and 25 and get 450cm^{3}

I hope this is right

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Answer:

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Step-by-step explanation:

<u>Step 1:  Determine the area of the bottom rectangle</u>

A = l * w

A = 10\ cm * 12\ cm

A = 120\ cm^2

<u>Step 2:  Determine the area of the back rectangle</u>

A = l * w

A = 10\ cm * 5\ cm

A = 50\ cm^2

<u>Step 3:  Determine the area of the top rectangle</u>

A = l * w

A = 10\ cm * 13\ cm

A = 130\ cm^2

<u>Step 4:  Determine the area of the triangle</u>

A = \frac{h*b}{2}

A = \frac{5\ cm * 12\ cm}{2}

A = \frac{60\ cm^2}{2}

A = 30\ cm^2

<u>Step 5:  Determine the surface area</u>

120\ cm^2 + 50\ cm^2 + 130\ cm^2 + 2(30\ cm^2)

360\ cm^2

Answer: 360\ cm^2

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Answer:

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1 meter = 3.28084 feet

10 x 3.28084 = 32.8084

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