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
if four congruent circles are insicribed in a sqaure qith the side length of 20mm what is the peremiter of the shaded portion of the square?
solve: (2c^2-8/4c^2-8c)(c^2+2c^2)/8c^3