Advertisements
Advertisements
प्रश्न
The radius of two circles are 20 cm and 13 cm. Find the difference between their circumferences. (Take π =`22/7`)
Advertisements
उत्तर
Radius of 1st circle = 20 cm
Circumference of the circle = 2πr
= `2xx22/7xx20`
= `40 xx 22/7`
= 125.7 cm
The radius of 2nd circle = 13 cm
Circumference of the circle = 2πr
= `2xx22/7xx13`
= `26 xx 22/7`
= 81.7
∴ The difference of circumference of two circles
= 125.7 − 81.7 cm = 44 cm
APPEARS IN
संबंधित प्रश्न
Find the circumference of the circle with the following radius: (Take `bb(pi = 22/7`)
28 mm
Find the area of circle whose circumference is 44 cm.
The minute hand of clock is10cm long. Find the area of the face of the clock described by the minute hand between 8am and 8:25 am
The area of rhombus is `480cm^2` , and one of its diagonal measures 48 cm. Find
(i) the length of the other diagonal,
(ii) the length of each of the sides
(iii) its perimeter
Choose the correct alternative answer for the following question.
In the given figure, the shape of the top of a table is that of a sector of a circle with centre O and ∠AOB = 90°. If AO = OB = 42 cm,· then find the perimeter of the top of the table.
Find the perimeter of the given shape (Take π = `22/7`).
Find the circumference of the circles whose radii are given below.
49 cm
The circumference of a circle whose area is 81 πr2, is ______.
The area of a square is 100 cm2. The circumference (in cm) of the largest circle cut of it is ______.
