Question

Regular triangular pyramid has 6 cm long base edge and slant height k=9 cm. Find the lateral area of the pyramid.

Answer 1

81 cm^2

Explanation:

lateral area : 3 triangles of base 6 cm and height 9 cm

Lateral area = 3 times 1/2 times 6 times 9

= 81 cm^2

Answer 2

The lateral area consists of 3 triangles of base 6 cm and height 9 cm

Lateral area = 3 * 1/2 * 6 * 9 = 81 cm^2 answer