Question

Surface Area of the attached figure?

Answer 1

see the attached figure where green line length=\[8\sqrt{2}\]
so every lateral side length=16.49 (using pythagoras theorem);

area of each side triangle \[b(\sqrt{4a ^{2}-b ^{2}})/4\]where a is the length of each equal side and b is the length of other side.
here a=16.49, b=16

so we get tr. area=115.36 cm^2
for 4 such triangle....area 461.42 cm^2.
and the base area 16^2=256.
total area=717.42 sq cm.

Answer 2

you can take help from the link http://www.ajdesigner.com/phptriangle/isosceles_triangle_area_k.php

Answer 3

thanks!