If they are similar, their sides are proportional. Compare 3/5 ratio is the same as x-4/x
To find a circumference of a circle you have to use this expression: C = d<span>π. d stands for the diameter, so let's find that first.
To find the diameter multiply the radius by 2.
2.5 x 2 = 5
Let's rewrite our equation now. C = 5 </span>· π
<span>15.71 = </span>5 · π
The answer is 15.71
Answer:
r=-17
Step-by-step explanation:
Answer:
Town C is approximately 58.356 kilometers from town A.
Step-by-step explanation:
According to the statement, we understand that tourist travels from town A to town B (50 kilometers) at a direction of 80º west of north and from town B to town C (40 kilometers) at a direction of 20º east of north. Vectorially speaking, the resultant from town A to town C is described by the following formula:
The distance from town A to town C is the magnitude of vector reported above, which is now calculated by Pythagorean Theorem:
Town C is approximately 58.356 kilometers from town A.