mona92
25.06.2019 •
Mathematics
What is the surface area of the figure?
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Ответ:
The surface area of the figure is
Step-by-step explanation:
we know that
The surface area of the figure is equal to
where
B is the area of the L-shaped cross section
P is the perimeter of L-shaped cross section
H is the width of the figure
Find the area of the L-shaped cross section
Find the perimeter P of L-shaped cross section
substitute
Ответ:
Surface area = 458 square ft
Step-by-step explanation:
From the figure attached with this answer we can see figure.
To find the surface area of the figure
Surface area is sum of area of small rectangles
Surface area = 2(12 * 7 ) + 4(5 * 5) + 2(12 * 5) + 2(7 * 5)
= 2*84 + 4*25 + 2 *60 + 2*35
= 168 + 100 + 120 + 70
= 458
Therefore surface area of given figure = 458 square ft
Ответ: