The circumferences of two circles are in the ratio 4 : 5. What is the ratio of their radii?... | MCQ 1m | Maths | SuperPadhai

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MCQ1 markYear: 2023EasyCBSE Class 10

circlescircumferenceratio

Question

The circumferences of two circles are in the ratio

4 : 5

. What is the ratio of their radii?

Solution

1

Circumference

= 2 π r

. If

\frac{2 π r _{1}}{2 π r _{2}} = \frac{4}{5}

, then

\frac{r _{1}}{r _{2}} = \frac{4}{5}

.

+1 mark

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