A right triangular pyramid XYZB is cut from cube as shown in figure. The side of cube is 16 cm. X, Y and Z are mid points of the edges of the cube . What is the total surface area (in cm²) of the pyramid ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 ie 32(3 + √3).
T.S.A = Base triangle area + face triangle area
= (√3/4) × (8√2)² + 3 × (1/2) × 8 × 8
= 151.4256
= 32(3 + √3)