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Nina [5.8K]
3 years ago
11

All rectangles are parallelograms. Are all parallelograms rectangles? Explain

Mathematics
1 answer:
shtirl [24]3 years ago
3 0
No not all parallelograms are rectangles, Parallelograms have opposite sides parallel and equal in length.Rectangles,squares and rhombuses are all parallelograms.
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PLEASE HELP 100 POINTS!
krok68 [10]

Answer:

800%

Step-by-step explanation:

<u>Volume of a square based pyramid</u>

\sf V=\dfrac{1}{3}a^2h

where:

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  • h = height

<u>Given values</u> for Pyramid A:

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Substitute the given values into the formula to find the volume of <u>Pyramid A</u>:

\begin{aligned}\textsf{Volume of Pyramid A} & = \sf \dfrac{1}{3}(14)^2(6)\\\\& = \sf \dfrac{1176}{3}\\\\& = \sf 392\:\: in^3 \end{aligned}

Given:

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To find how many times bigger Pyramid B is than Pyramid A, divide the <u>volume of Pyramid B</u> by the <u>volume of Pyramid A</u>:

\implies \sf \dfrac{3136}{392}=8

Therefore, the volume of Pyramid B is 8 times bigger than the volume of Pyramid A.

8 as a percentage is 800%, since 800/100 = 8.

Therefore, the volume of Pyramid B is 800% the volume of Pyramid A.

To verify this, find 800% of the volume of Pyramid A:

⇒ 800% of 392

= 800/100 × 392

= 8 × 392

= 3136

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