7. a) Draw a circle of radius 4cm Mark two points on it. Draw a triangle with one vertex at the centre of
the circle and the other two on the circle?
b) Draw another triangle of the same area with all the three vertices on.
8. The sum of the digits of a two digit number is 8. If their digits are
reversed, the new number is 18 more than the first. Find the number?
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7.a) the answer is in attachment.....
b) it is also in attachment....
8.Generally, the two digit number can be represented as p=10x+y . Given that the sum of the digits is 9. Now, by reversing the number we get the relation, 9(10x+y)=2(10y+x).
8. The answer is in attachment no. 3
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