It helps demonstrate it since it forms a right triangle in the middle with 2 base lengths and a hypotenuse. The areas of the squares can be plugged into the pythagorean theorem in order to find the answer
Answer:
147
Step-by-step explanation:
The other two options would be more closed and since this angle is open, it is the larger one.
Answer:
narr
Step-by-step explanation:
Answer:
The value of sin Ф is
Step-by-step explanation:
In quadrant II, the value of
Let us solve the question
∵ sin²Ф + cos²Ф = 1
∵ cos Ф = ![\frac{-12}{13}](https://tex.z-dn.net/?f=%5Cfrac%7B-12%7D%7B13%7D)
→ Substitute it in the identity above
∴ sin²Ф + (
)² = 1
∴ sin²Ф +
= 1
→ Subtract
from both sides
∵ sin²Ф +
-
= 1 -
∴ sin²Ф =
→ Take the square root of both sides
∵ √(sin²Ф)= ± ![\sqrt{\frac{25}{169}}](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cfrac%7B25%7D%7B169%7D%7D)
∴ sin Ф = ± ![\frac{5}{13}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B13%7D)
∵ Ф is in quadrant II
∴ sin Ф is a positive value
∴ sin Ф = ![\frac{5}{13}](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B13%7D)
∴ The value of sin Ф is
Answer:
ratio = 1/2
Step-by-step explanation: