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Ksju [112]
3 years ago
6

How do you work out the length of radius and diameter of these two circles?

Mathematics
1 answer:
bogdanovich [222]3 years ago
8 0
So for the first one what you did was wrong as in wrong formula.
Radius is 5cm as it is given and diameter is double the radius which is 10.
So r=5
And D=10.

For the second one the diameter is 16cm as it is given and radius is half the diameter,so half of 16 is 8cm right?
So r=8
And D=16
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<h3>How to find the original length of the rope using ratio?</h3>

He cut a rope into two pieces with lengths having a ratio of 5 to 2.

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The length of the original rope can be calculated as follows:

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