exam Maths Puzzle Numerical Ability

whats the radius of a circle with the area of 192 cm is

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exam Other Question

Can you verify my answers for the following questions? For #1 I got 6.3 m and for #2 I got 7.6 m. Are these correct?

1) A homeowner wishes to insulate her attic with fiberglas P and Q are whole numbers such that 0