# What is the surface area of this design ?

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## Question:

What is the surface area of this design ?

Step-by-step explanation:

The formula to calculate the surface area of cuboid with dimensions l by w by h is given by :-

From the given picture, the dimensions of upper block (cuboid) is 5 in. by 5 in. by 8 in.

Then the surface area of the upper block is given by :-

Also, the dimensions of lower block (cuboid) is 10 in. by 10 in. by 2 in.

Now, the surface area of design =

Hence, the the surface area of this design =

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