Question

Q.7 Draw a line segment AB of length 7om Taking A as centre draw a circle of radius 3cm and
taking Bas a centre, draw another circle of radius 2em Construct tangents to each circle from
the centre of the other circle
Qathe ratio of sum of first m and first n terms of an AP is m':n show that ratio of its mth and
nth terms is (2m-1) (2n-1)
09 A chord of a circle of radius of 15cm subtends an ongle of 60* at the centre. Find
the areas of the corresponding minor and major segments of the circle (Taken * 3.14
and V3. 1.73)
Q.10 From a solid cylinder whose height is 2 dem and diameter 1 4cm a conical cavity of the
same height and same diameter is hollowed out. Find the volume of the remaining solid to the
nearest cm​

Answer 1

Step-by-step explanation:

8.Steps of construction :

1. Draw a line segment AB of 7 cm.

2. Taking A and B as centre draw two circle of 3 cm and 2 cm radius respectively.

3. Bisect the line AB. Let mid - point of AB be C. 4. Taking C as centre draw a circle of radius AC which intersects the two circles at point P,Q,R and S.

5. Join BP, BQ, AS and AR. BP,BQ and AR, AS are the required tangents.