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Does anyone know the answer and how to get the answer ?

Does Anyone Know The Answer And How To Get The Answer class=

Sagot :

Answer:

3. [tex]384\ square\ inches[/tex]

Step-by-step explanation:

To solve this, find the areas of the smaller geometric shapes and add them together.

1. Rectangle (top)

[tex]A_1 = lw = 20 * 5 = 100[/tex]

2. Rectangle (middle)

[tex]A_2 = lw = 20 * 8 = 160[/tex]

3. Rectangle (bottom)

[tex]A_3 = lw = 20 * 5 = 100[/tex]

4. Triangle (left)

[tex]A_4 = \frac{bh}{2} = \frac{8*3}{2} = \frac{24}{2} = 12[/tex]

4. Triangle (right)

[tex]A_5 = \frac{bh}{2} = \frac{8*3}{2} = \frac{24}{2} = 12[/tex]

Add the areas together for the total surface area.

[tex]A_t = 100 + 160 + 100 + 12 + 12 = 384[/tex]