Answer:
Option C is correct.
Explanation:
Given:
Length of the base rectangle = 15 unit
Width of the base rectangle = 15 unit
Height of triangle on the side of pyramid = 15 unit
Length of the base of the triangle = 15 unit
Surface are of the rectangular pyramid = Area of Base + 4 × Area of triangle on side.
Area of base = length × width = 15 × 15 = 225 unit²
Area of the triangle = 1/2 × base × height = 1/2 × 15 × 15 = 112.5 unit²
Surface Area = 225 + 4 × 112.5 = 225 + 450 = 675 unit²
Therefore, Option C is correct.