The lateral area for the regular pyramid. is 4√10 sq. units , Option A is the correct answer.
What is a Pyramid ?
Pyramid is a three dimensional figure made of combination of basic figures.
A triangular pyramid is given in the question
The lateral area for the pyramid is
The stant height is given by
l = √10
Lateral Surface Area = (1/2) * Perimeter of the base * lateral height
Lateral Surface Area = (1/2) * 8 *√10
Lateral Surface Area = 4 √10 sq. units
Therefore Option A is the correct answer.
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