Question

If two circles of radii 5.5cm and 3.3cm respectively touch each other internally what is the distance between their center​

Answer 1

Answer:

The radii of the two circles are 5.5 cm and 3.3 cm.

If two circles touch each other externally, distance between their centres is equal to the sum of their radii.

∴ Distance between their centres = 5.5 cm + 3.3 cm = 8.8 cm

If two circles touch each other internally, distance between their centres is equal to the difference of their radii.

∴ Distance between their centres = 5.5 cm − 3.3 cm = 2.2 cm  

Thus, the distance between their centres is 8.8 cm or 2.2 cm

I HOPE IT HELPS

Answer 2

The distance between their center = 2.2 cm

Given : Two circles of radii 5.5 cm and 3.3 cm respectively touch each other internally

To find : The distance between their center

Tip : If two circles touch each other internally then the distance between their centres is equal to the difference of their radius

Solution :

Step 1 of 2 :

Write down the given data

Two circles of radii 5.5 cm and 3.3 cm respectively touch each other internally

Step 2 of 2 :

Find the distance between their center

We know that if two circles touch each other internally then the distance between their centres is equal to the difference of their radius

Hence the required distance between their center

= Radius of bigger circle - Radius of smaller circle

= 5.5 cm - 3.3 cm

= 2.2 cm

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