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Novosadov [1.4K]
3 years ago
6

A square pyramid has base edge length 14 m. The height of the pyramid is 24 m. Find the surface area of the square pyramid. Use

pencil and paper. Draw a net for the figure and find the surface area.

Mathematics
1 answer:
kotegsom [21]3 years ago
8 0

Answer:

The total surface area is 896 m^{2}

Step-by-step explanation:

<em>The square pyramid is a solid with square base and symmetric 4 triangular faces.</em>

Given that the square base is 14 m and height is 24 m.

The apex of pyramid, center of square and center of any edge of square make a right angled triangle.

Let that height if triangular face be "x".

by pythagoras theorm , x^{2} = 7^{2} + 24^{2} = 625

x = 25 m

the area of square base is 14^{2} = 196 m^{2}

the area of each triangular side is <em>(\frac{1}{2})(base)(height) = (\frac{1}{2})(14)(25) = 135 m^{2}</em>

such are 4 triangles, thus (4)(135) = 700 m^{2}

Thus the total surface area is 196 + 700 = 896 m^{2}

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