A circle has an arc of length 20π that is intercepted by a central angle of 180°. What is the radius of the circle?
1 answer:
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Answer:
a: -13º
b: 83º
Step-by-step explanation:
- a: º
- b: º
- the equation would originally be written as 68 - -15 but 2 negatives make a positive so -- becomes +
hope this helps :)
The side lengths could be 10, 24 and 26 units.
We must first find the side lengths. We use the distance formula to do this.
For RT:
For ST:
For TR:
Our side lengths, from least to greatest, are 5, 12 and 13.
To be similar but not congruent, the side lengths must have the same ratio between corresponding sides but not be the same length. 10, 24 and 26 are all 2x the original side lengths, so this works.
We must first find the side lengths. We use the distance formula to do this.
For RT:
For ST:
For TR:
Our side lengths, from least to greatest, are 5, 12 and 13.
To be similar but not congruent, the side lengths must have the same ratio between corresponding sides but not be the same length. 10, 24 and 26 are all 2x the original side lengths, so this works.