Question

OKU
Find the area of a circle of diameter 8.4 m
2. The circumference
circumference of a circle is 17.6 cm. Find the area of the circle.
he area of a circular lawn is 154 m², find its circumference.
a
A circular plot is of radius 77 m. Find its value at * 175 per square metre.
5. The diameters of two silver discs
6. If the perimeter of a semi-circular park is 72 m, find its area and radius.
ato 2:3. What will be the ratio of their areas?
7. If a wire of 440 m length is moulded in the form of a circle and a square
find the ratio of the area of the circle to that of square.
e turn-
8 cm.
8. Find the area of the square that can be inscribed in a circle of rac
9. The diameter of a circular park is 24 m. A 3 m wide path S.
runs around it from inside. Find the cost of paving the
path at 25 per square meter.
-
.-
7 cm
.
-
2
10. A paper is in the form of a rectangle PQRS in which
PQ = 10 cm and QR = 7 cm. Two semi-circular portions
with QR and PS as diameters are cut of
as diameters are cut off (As shown in PK
figure 11.22). Find the area of the remaining part.
10 cm
Fig. 11.22
221​

Answer 1

Answer:

Use the Formulas...,

1. Area of Circle = πr^2.
2. Circumference of Circle = 2πr.

Step-by-step explanation:

I hope this may help you...