Question

9. Maria wants to fence her circular kitchen garden of diameter 28 m. Find the length of the wire
she needs to purchase if she makes 6 rounds with the wire to fence her garden. Also find the cost
22
11. The circumference of a circle is 10 cm. Find the radius and the area of the circle. (Take Ti = 3.14)
14. A piece of wire is bent to form a square of area 121 cm², the same piece of wire is bent to form
15. A 7 m broad road runs along outside a circular park of radius 49 m. Find the area of the road.
of fencing if 1 metre of wire cost 3 11. (Take 1 =
10. The ratio of the circumference of two circles is 4 : 1. Find the ratio of their areas.
12. Find the area of the shaded region of the figure given alongside.
(Take 1 = 22)
12 cm
13. A circle of radius 3 cm is cut out from a rectangular piece of paper of dimensions 10 cm x
Find the area of the left over paper. (Take = - 3.14)
22
circle. Calculate the (a) radius of the circle (b) area of the circle. Take 1 =
7 cm
11cm.
23)
16. A horse is tied with a rope 7 m long to one corner of a square field of side 17 m. Find the
22
grass that the horse can graze. Take ni =
are
7​

Answer 1

Step-by-step explanation:

Ans. Diameter of Kitchen Garden (D) = 29m

Wire Need For one Round = Circumference of Circle = πD=227×29=6387=91.1 m

Wire need for 6 round = 91.1×6=546.6=Approx. 547m

Cost of 1 m Wire = Rs. 11

Cost of 547 m Wire = 547×11=Rs. 6017

Answer 2

Answer:

hope it will be helpful to you