The ratio of the radii of two wheels is 4: 5. Find the ratio of theircircumference
Question
The ratio of the radii of two wheels is 4:5. Find the ratio of their circumference.
Solution
The circumference of a circle is given by the formula 2πr, where r is the radius of the circle.
Since the ratio of the radii of the two wheels is 4:5, the ratio of their circumferences will also be 4:5.
This is because the circumference is directly proportional to the radius. If you double the radius, you double the circumference. If you halve the radius, you halve the circumference. So, if the ratio of the radii is 4:5, the ratio of the circumferences will also be 4:5.
Similar Questions
In the adjacent figure, if two circles are equal and the third was of radius 4 units, find the radius of equal circles.
If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.
Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm. Find the length of the common chord.
Ratio of areas of incircle and circumcircle of an equilateral triangle is?1:41:22:12:3
The radii and height of two cylinders are in the ratio 3:2 and 4:5 respectively. Find the ratio of their volumes A)9:5 B)18:10 C)21:25 D)8:3
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.