exam Maths Puzzle Numerical Ability

I have to find the apothem, lateral area, and surface area of a regular right pyramid using the following information:
Slant height (units) = 9
Number of sides on the base =

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exam Other Question
The sum of two numbers is 112. The greater of the two is 32 less than 11 times the lesser number. Find the number? C-1 The area of a square is 625 mm^2. Find its side length.