viii) Find the measure of each of the interior angle of a regular pentagon.
ix) The square root of a number whose prime factorisation is 2x2x3x3x3x3x5x5
x) Find the cube root of 1000.
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1.(n-2)x180)/ndegrees=side of pentagon
n=5
(5-2)x180)/5 degree=108degree
2. 90
3. cube root of 1000 is 10
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