Question

EXERCISE 20(D)
1. Find the radius and area of a circle, whose
are 63 m and 70
(ii) 22 m
(ii) 6.16 m2
8.
7. The radii of the inner and outer circumferens
(ii) the difference between the lengthsdte
two circumferences of the track
A circular field of radius 105 m has a rola
path of uniform width of 5 m along and indir,
its boundary. Find the area of the path.
There is a path of uniform width 7 m rounded
outside a circular garden of diameter 210 m
10. A wire, when bent in the form of a square
encloses an area of 484 cm2. Find :
11. A wire, when bent in the form of a square
encloses an area of 196 cm. If the same in
Whenever the
of a circular-running-track
circumference is :
respectively. Find :
(i) 132 cm
( the area of the track
2. Find the radius and circumference of a circle,
whose area is :
(i) 154 cm2
3. The circumference of a circular table is 88 m.
Find its area.
4. The area of a circle is 1386 sq. cm, find its
9.
circumference.
Find the area of a flat circular ring formed
Find the area of the path.
by two concentric circles (circles with
same centre) whose radii are 9 cm and
5 cm.
(i) one side of the square
6. Find the area of the shaded portion in each of
(ii) length of the wire
the following diagrams:
(iii) the largest area enclosed, if the same
(0)
wire is bent to form a circle.
5.
4.5
2.5 m
7 cm
234
Concise MATHEMATICS Middle School –
Area of T​

Answer 1

Answer:

sorry but your question is so long

Answer 2

Answer:

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so long I cant