engineering recuitment GATE ME 2023-24 Test Series Logical Reasoning Non Verbal Reasoning Paper Folding and Cutting
A sheet ABCDEF of cross-section given below is folded along the dashed lines BF, DF, and BD such that A, E, and C meet to form a regular pyramid. The base of the regular pyramid is an equilateral triangle with a side length of 12 cm. What will be the total surface area of the regular pyramid?
1
522 cm2
2
54√239. cm2
3
36√3 + 54√ cm2
4
36√3 + 54√239 cm2