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habsofarah0
25.08.2019 •
Mathematics
What is the range of the data set shown below?
{14, 15, 18, 20, 25}
a) 18.4
b) 18.2
c) 18
d) 11
Solved
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Ответ:
Ответ:
They are similar for their radii, and perimeters have the same ratio: 2
Step-by-step explanation:
The similarity of circles is proved, when we can compare the ratio, between the two radii and the two perimeter and it is the same.
2. The Circle X, has a radius of 6 and the circle Y has the radius of 3.
So let's do it:
3. Now let's check the Perimeters:
4. In addition to this, we can do this Geometrically, by inserting the Circle Y within the Circle X, and if dilate by the scale factor of 2 we'll have these two circumferences coincide.