Amir is building a birdhouse that looks like a castle. The diagram shows the roof of the birdhouse. He plans to paint the roof red, but needs to know the surface area to buy the…

Question

asked Mar 15, 2020 125k views

2 Answers

Schenker · Answer 1 · 2020-03-21T05:29:30+0000

Answer:

The surface area is
$0.64\ m^(2)$

Explanation:

we know that

The surface area of a square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces.

so

SA=b^(2)+4[(1)/(2)(b)(l)]

we have

$b=0.4\ m$

$l=0.6\ m$

substitute the values

$SA=0.4^(2)+4[(1)/(2)(0.4)(0.6)]=0.64\ m^(2)$