The scale on a map is 1 cm:60 km. How many kilometers are represented by 2.5 centimeters on the map
1 answer:
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Given:
AB is the diameter of a circle whose center is the point (4,-3).
Coordinates of A are (-1,5).
To find:
The measure of AB.
Solution:
Let point O(4,-3) be the center of the circle.
Then, OA is the radius of the circle.
We know that, diameter of a circle is twice of its radius.
So, ...(i)
Distance formula:
Using distance formula, the distance between O and A is
Now, using (i), we get
Therefore, the measure of AB is units.