Question

PLEASE HELP! I HAVE 2 MINUTS LEFT! SORRY FOR CLOSING & REOPENING BUT I ONLY HAVE 2 MIN LEFT! The surface area of a pyramid is 189 cm squared The area of the square base is 49 cm squared. What is the area of one triangular face of the lateral surface? Show the steps of your solution and explain your work.

Answer 1

S.A. of triangular pyramid = 4*S.A. triangular side + S.A. of base

Answer 2

We know S.A. of triangular pyramid and S.A. of base

Answer 3

substitute these values into the above equation and solve for S.A. triangular side