exam Maths Puzzle Numerical Ability

If I have an equilateral triangle with a hypotenuse of 82 cm, what is the length of the two equal sides?

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exam Other Question

This was from standardized test (ASSET):

Tractors A,B, C & D are equipped identically. Together A,B & C can plow 180 acres in 2 hrs. How many acres can all 4 (A, B, C & D) plow in 3 hrs? solve log(2x+3) = log(4x)+ 2, for x giving your answer correct to 3 significant figures