1) Find the measure of each interior angle of a regular.
a. Pentagon b. Hexagon c. Octagon d. polygon of 12 sides
2) The sum of two digit of two digit number is 12. If the new number formed by reversing
the digits is greater than the original number by 54 find the original number.
3) Solve (4 m - 3n) +2mn
4) Simplify: (1) 144 x 169 (ii) 715.21 x 16.97
15)
Factorise the following expressions
(1)-162 + 20 2
(ii)4a? + 4ab - 4ac.
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-4ac is the answer....
Plz mark me as brainliest
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