Question

What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm?

Answer 1

1. What is the lateral surface area of a square pyramid with side length 11.2 cm and slant height 20 cm?
224 cm2
448 cm2
896 cm2
2508.8 cm2

1. 4 sides each 1/2 (11.2*20)
= 448

Answer 2

Answer: 448 square centimeters

Explanation:

The lateral surface area of a square pyramid is given by :-

`L=(1)/(2)Pl`, where P is the perimeter of the base and l is the slant height.

Given: The slant height of the pyramid = 20 cm

Side length = 11.2 cm

The perimeter of the square pyramid =
`4(side)=4(11.2)=44.8\ cm`

Now, the lateral surface area of a square pyramid will be :-

`L=(1)/(2)(44.8)(20)\\\\\Rightarrow\ L=448\ cm^2`