exam Maths Puzzle Numerical Ability

Can someone help me find the length of arc s, if r = 10 and
(theta(the 0 with a slash))= pi/6

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exam Other Question

The perimeter of a rectangle is 66m. If the width were doubled and the length were increased by 22m, the perimeter would be 136m. What are the length and width of the rectangle? Discuss the symmetry of the function y = - x 5 / (x 2 � 8