exam Maths Puzzle Numerical Ability

what is the sine of an angle whose tangent is 2? first find an answer without a calculator, then check it with one.

thank you!

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exam Other Question

Calculate the perimeter of a figure if one side is 4.5ft,another side is 1.7ft., another side is 1.5ft., another side is 8.8ft, another side is 1.9ft., and the last side is 2.2ft.

Thanks! 1* 12-root5x-30xsquare