Question

What is the surface area of the square pyramid represented by the net?

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( ) cm2

Answer 1

you answer is 184.19
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Answer 2

Answer:
`175\ cm^2`

Explanation:

From the given picture the surface area of square pyramid = Area of square+Area of 4 triangles.

Area of square =
`side^2=7^2=49\ cm^2`

For triangles, base of triangle b=7 cm

Height of triangle= 9 cm

Area of one triangle=
`(1)/(2)bh=(1)/(2)(7)(9)=(63)/(2)\ cm^2`

Now, Area of 4 triangles =
`4*(63)/(2)=126\ cm^2`

Area of square pyramid =Area of square+Area of 4 triangles.

`=49\ cm^2+126\cm^2=175\ cm^2`