Answer: 4:15
Step-by-step explanation:
D+F=N: n is the variable (the sum).
Step-by-step explanation:
By Cosine rule, we have
s² = t² + u² - 2(t)(u)(cosS)
=> cosS = (t² + u² - s²)/2tu
=> cosS = (58² + 27² - 50²) / (2 * 58 * 27) = 0.5086.
Therefore S = cos^-1(0.5086) = 59.4° (1d.p.)
Answer for x would be 4. the area of the circle would be approx. 28.3.
