I think its sides ae congruent and sides are congruent
(2x - y)(4x2 + 2xy + y2) =
8x3 + 4x2y + 2xy2 - 4xy2 - 2xy2 - y3 (combine and simplify like terms)
= 8x3 - y3
A = 31 degree
Cos 31 degree = 400/x
X = 400/ Cos 31
= 400/0.8572
= 466.7ft
The surface area of the cube-shaped wooden chest which has the side edges of 4 feet shown is 96 square inches.
<h3>What is the surface area of a cube?</h3>
Surface area of cube is the sum of the area of each face by which it is enclosed. The surface area of cube can be calculated with the following formula;

Here, (<em>a</em>) is the length of side of the cube.
You want to stain the lateral faces of the wooden chest shown. Find the area that you want to stain in square inches.
A cube-shaped wooden chest with side edges of 4 feet. Thus the surface area of it is,

Thus, the surface area of the cube-shaped wooden chest which has the side edges of 4 feet shown is 96 square inches.
Learn more about the surface area of cube here;
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Answer:
27.375
Step-by-step explanation: