3 years ago

What is the surface area of the rectangular prism shown below?

Mathematics

1 answer:

PolarNik [594]3 years ago

6 0

D 378
Hope this helps

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How do I calculate the shaded area of this shape ?

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We are to calculate the shaded area of the given shape.

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This is a triangle that a rectangle was cut out from.

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$\begin{gathered} \text{Area of Triangle:} \\ A\text{ = }\frac{1}{2}\text{ base }\times\text{ height} \\ \\ A\text{ = }\frac{1}{2}\text{ }\times\text{ 6m }\times7m\text{ } \\ \\ A=21m^2 \end{gathered}$ $\begin{gathered} \text{Area of Rectangle:} \\ A=L\text{ }\times\text{ W } \\ A\text{ = 4m }\times\text{ 2m} \\ A=8m^2 \end{gathered}$

The shaded area = Area of the triangle - Area of the rectangle

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