The sides of a square are each multiplied by 3 to firm a new square. if the area of the original was k, then the area of the square is what? explain the answer : (

the correct answer option is d. la = πrs.

step-by-step explanation:

we know that for a right cone, the lateral surface area is given by:

lateral area of right cone =

here the value under the square root is equal to slant height so replacing this value by in the formula to get:

lateral area of right cone =

therefore, the correct answer option is d.