Question

5. The circumference of two concentric circles are 121 cm and 154 cm. Calculate the diffe
between their radii.
6 The diameter of the wheel of a rart is 140 cm. How much distance will the cart​

Answer 1

Step-by-step explanation:

Let the circumference of 1 circle =2pie×r^2=121

Let the circumference of 2 circle =2pie×r^2=154

Radius of 1 circle =847/44

Radius of 2 circle =49/2

Difference between their radii.)=49/2-847/44

=1078-847/44

= 231/44

Difference between their radii.)=5.25

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