Mr. Potter makes two types of wooden pyramid puzzles.
The base of Puzzle 1 is a square with side lengths of
5 inches and a slant height of 7 inches. Puzzle 2 is
shown. If the cost of materials to build the puzzles is
$0.16 per square inch, what is the difference in
cost to make the puzzles?
1.76
4 in..
48
6 in.
36
1245 P2-84;ng
6 in.

Respuesta :

The difference in cost to make the puzzles is $1.76 if Mr. Potter makes two types of wooden pyramid puzzles.

What is a square pyramid?

In geometry, it is defined as the shape having a square base with equal sides length and all the vertex of the square's joints at the top, which is perpendicular to the centre of the square.

We know,

The surface area of the pyramid

SA = area of the base + 4(area of each triangle)

SA of first pyramid;

Area of base = 5² = 25 square inches

Total Area of triangle =4×(0.5×7×5) = 70 square inches

Total Area of the pyramid = 25 + 70 = 95 square inches

Total cost of construction =$(0.16×95) =$15.2

SA of second pyramid:

Total Area = 6×6+2×6×4 = 84 square inches

Total cost of construction = $(0.16×84) = $13.44

The difference in cost =$(15.2 – 13.44) = $1.76

Thus, the difference in cost to make the puzzles is $1.76 if Mr. Potter makes two types of wooden pyramid puzzles.

Learn more about the pyramid here:

brainly.com/question/13057463

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