Question

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

Answer 1

You answer is 184.19
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Answer 2

Answer: $175\ cm^2$

Step-by-step 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=$\frac{1}{2}bh=\frac{1}{2}(7)(9)=\frac{63}{2}\ cm^2$

Now, Area of 4 triangles =$4\times\frac{63}{2}=126\ cm^2$

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

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