Advertisements
Advertisements
Question
A ground is in the form of a circle whose diameter is 350 m. An athlete makes 4 revolutions. Find the distance covered by the athlete
Advertisements
Solution
Diameter of the ground d = 350 m
Distance covered in 1 revolution = Circumference of the circle
= πd units
= `22/7 xx 350 "m"`
= 22 × 50
= 1100 m
Distance covered in 1 rotation = 1100 m
Distance covered in 4 revolutions = 1100 × 4
= 4400 m
APPEARS IN
RELATED QUESTIONS
In circle of radius 6cm, chord of length 10 cm makes an angle of 110° at the centre of circle find Area of the circle
Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular cardboard of dimensions 14 cm ⨯ 7 cm. Find the area of the remaining cardboard.
A path of 8 m width runs around the outsider of a circular park whose radius is 17 m. Find the area of the path.
In the given figure, the area of the shaded portion is 770 cm2. If the circumference of the outer circle is 132 cm, find the width of the shaded portion.
The diameter of two circles are 28 cm and 24 cm. Find the circumference of the circle having its area equal to sum of the areas of the two circles.
Find the circumference of the circle whose area is 25times the area of the circle with radius 7cm.
The numerical value of the area of a circle is greater than the numerical value of its circumference. Is this statement true? Why?
The radius of a circle whose circumference is equal to the sum of the circumferences of the two circles of diameters 36 cm and 20 cm is ______.
A wire is bent to form a square of side 22 cm. If the wire is rebent to form a circle, its radius is ______.
Value of π is ______ approximately.
