Verified Answer :

  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 
JeanaShupp

Answer: 448 square centimeters

Step-by-step explanation:

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

\(L=\dfrac{1}{2}Pl\), 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 :-

\(L=\dfrac{1}{2}(44.8)(20)\\\\\Rightarrow\ L=448\ cm^2\)

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