The area of the base is \(5 \times 5 = 25~cm^2\) The area of each triangular face is \((5 \times 6) \div 2 = 15~cm^2\). There are four identical triangular faces, so the total surface area is \(25 ...

Save guides, add subjects and pick up where you left off with your BBC account. The surface area of a pyramid can be calculated by adding the area of the base to the sum of the areas of the ...