Page 236 - Start Up Mathematics_8 (Non CCE)

3. A rectangle whose adjacent sides are equal becomes a ____________.

4. If the sum of interior angles is double the sum of the exterior angles taken in an order of a polygon, then
it is a hexagon. (True/False)

5. Find the measure of an exterior angle of a regular pentagon and an exterior angle of a regular decagon.
What is the ratio between these two angles?

6. ABCDE is a regular pentagon. The bisector of angle A meets the side CD at M. Find –AMC.

A

E B

D C
M
7. A line l is parallel to line m and a transversal p intersects them at X, Y respectively. Bisectors of interior
angles at X and Y intersect at P and Q. Is PXQY a rectangle? Give reason.

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