Surface area of square pyramid having square base side = 10 cm and slant height = 20 cm is 340 square meters
Solution:
Given that
Shape of the roof is square pyramid.
Base length of square pyramid roof = 10 meters
Slant height of square pyramid roof = 12 meters
Need to calculate the surface area of the roof
[tex]\text { Surface area of square pyramid }=s^{2}+2 \times s \times l[/tex]
Where s is side of square base and l is slant height.
In our case s = 10 meters and l = 12 meters
On substituting the given values in formula we get
Surface area of square pyramid [tex]=10^{2}+(2 \times 10 \times 12)=100+240=340 \text { meters }^{2}[/tex]
Hence surface area of square pyramid having square base side = 10 cm and slant height = 20 cm is 340 square meters.