Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 10 - Geometry - 10.5 Volume and Surface Area - Exercise Set 10.5 - Page 656: 8

Answer

The volume of the Pyramid is \[400\text{ }{{\text{m}}^{3}}\].

Work Step by Step

The volume of the Pyramid is \[400\text{ }{{\text{m}}^{3}}\]. The dimensions of the base are \[10\text{ m}\] and \[10\text{ m}\]. The height of the pyramid is \[12\text{ m}\]. First, compute the area of the base by multiplying the length and width using the equation as shown below: \[\begin{align} & \text{Area of base}\left( B \right)=\text{Length}\left( l \right)\times \text{width}\left( w \right) \\ & =\left( 10\times 10 \right)\text{ }{{\text{m}}^{\text{2}}} \\ & =100\text{ }{{\text{m}}^{\text{2}}} \end{align}\] Now, compute the volume of the pyramid using the equation as shown below: \[\begin{align} & \text{Volume of the Pyramid}\left( V \right)=\frac{1}{3}\text{ }\!\!\times\!\!\text{ Area of Base}\left( B \right)\times \text{Height}\left( h \right) \\ & =\left( \frac{1}{3}\times 100\text{ }{{\text{m}}^{2}}\times 12\text{ m} \right) \\ & =400\text{ }{{\text{m}}^{3}} \end{align}\] Hence, the volume of the given figure is \[400\text{ }{{\text{m}}^{3}}\].
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