exam Maths Puzzle Numerical Ability

If four angles of a pentagon have measures 100,96,87 and 97, find the measure of the fifth angle.

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exam Other Question

Divide: (2x^3 - x^2 + 3x - 1) / (x + 2) Square A is circumscribed about circle B and square C is inscribed in circle B. What is the ratio of the area of A to the area of B?

thankyou. Bill