exam Maths Puzzle Numerical Ability

Find the perimeter of the polygon, the top measures 21 m, the sides measure
12 m, and the bottom measures 27 m?

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exam Other Question

The number 1 is both a smute and thripe. If the integer s is a smute, then the next smute is s+5. If the integer t is a thripe, then the next tripe is 2t+1. What is the SMALLEST whole number GREATER than 1, that is both a smute and a thripe? find the distance between the lines with the following equations

3x-y+4=0 and

3x-y=0