Advertisements
Advertisements
प्रश्न
A Rose garden is in the form of circle of radius 63 m. The gardener wants to fence it at the rate of ₹ 150 per metre. Find the cost of fencing?
Advertisements
उत्तर
Radius of the garden r = 63 m
Circumference of the garden = 2πr units
= `2 xx 22/7 xx 63 "m"`
= 2 × 22 × 9
= 396 m
Cost of fencing 1 meter = ₹ 150
Cost of fencing 396 meter = ₹ 150 × 396 = ₹ 59,400
∴ Cost of fencing the garden = ₹ 59,400
APPEARS IN
संबंधित प्रश्न
A brooch is made with silver wire in the form of a circle with diameter 35 mm. The wire also used in making 5 diameters which divide the circle into 10 equal sectors as shown in Fig. Find:
(i) the total length of the silver wire required
(ii) the area of each sector of the brooch
The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles.
The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles.
Choose the correct alternative answer for the following question.
What is the perimeter of a square which circumscribes a circle of radius a cm?
In a circle of radius 21 cm, an arc subtends an angle of 60° at the centre. The length of the arc is
The radius of the circle is given below; find the area.
28 cm
Find the area of the circle if its circumfence is 88 cm.
Find the area and perimeter of the circle with the following:
Diameter= 35 cm
Each side of a square is 44 cm. Find its perimeter. If this perimeter is equal to the circumference of a circle, find the radius of the circle.
