A square-based pyramid tent has sides of 5 m and slant height 6 m. How much canvas is needed to cover only the four triangular sides (lateral surface)?
Show answer & explanation
Correct answer: D
Explanation
Has been given :
Side of square base = 5 m
Slant height = 6 m
According to the formula:
Lateral surface area of pyramid = 1/2 × perimeter × slant height
Perimeter = 4 × 5 = 20
Lateral area = 1/2 × 20 × 6 = 60 m²