Answer:
2√15
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required
Calculate the diameter
The area of a sector is:

Substitute values for Area and 

Divide both sides by 

Make
the subject



Take positive square roots of both sides



The diameter is then calculated as:



Answer:
b is the answer
Step-by-step explanation:
i did some research
Answer: 8/17
Step-by-step explanation: The ratio for tangent is opposite/adjacent. The side opposite from Y has a length of 8, and the side next to it has a length of 15. These are the lengths of the legs of the triangle. To find the sine ratio, you need the hypotenuse.
The hypotenuse can be found using the Pythagorean theorem. 8^2=64 and 15^2=225. 225+64=289. The square root of 289 is 17. The hypotenuse has a length of 17.
The ratio for sine is opposite/hypotenuse. Take the value of the opposite from the tangent ratio (8) and the length of the hypotenuse (17) to get 8/17.
The answer is B so yeah it’s really easy