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3 years ago

Find the surface area of the figure. ft

Mathematics

2 answers:

eimsori [14]3 years ago

7 0

Answer:486 $ft^{2}$

Step-by-step explanation:

surface area= 6 $l^{2}$

l=9

sa=6 ( $9^{2}$ )= 6 x 81=486 $ft^{2}$

Lapatulllka [165]3 years ago

3 0

Answer:

486

Step-by-step explanation:

Hello!

To find the surface area of a cube we use the equation

$S = 6a^{2}$

S is the surface area

a is the side length

Put what we know into the equation

$S = 6*9^{2}$

Solve

S = 6 * 81

S = 486

Hope this Helps!

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