exam Maths Puzzle Numerical Ability

a window has a shape of a square of side s, with a semicircle of diameter s above it. Write an equation that expresses the total of the window as a function of s

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exam Other Question

log8(x+6)-log8x=2 When the digits of a two-digit number are reversed, the new number is 9 more than the original number, and the sum of the digits of the original number is 11. What is the original number?