firrst u need to find the perimeter of the bases...length of one side by the number of sides...then multiply it by the heigt :)* * * * *That is just so not correct. The periimeter has absolutely...
Surface = 2b + Ph (b is the area of the base P is the perimeter of the base) OR Surface Area= 1/2(B x h)(2) + (s1+s2+s3)h OR Surface Area= (B x h) + (s1+s2+s3)h B= Base. H= Height. s1, s2, s3=...