Solving for the angles, we need to apply and use Law of Cosines:
Solving for ∠AB, we have
cos ∠AB = (BC² + CA² - AB²) / 2*BC*CA
cos∠AB = (9²+17² -13²) / 2*17*9
∠AB = 48.94°
Solving for ∠BC, we have
cos ∠BC = (AB² + CA² - BC²) / 2*AB*CA
cos∠AB = (13²+17² -9²) / 2*17*13
∠BC = 31.47°
Solving for angle CA, we have:
∠CA = 180° - 31.47° - 48.94°
∠CA = 99.49°
The smallest angle is 31.47°.
que mats soya de mućha la pañe trasdeće
Answer and Step-by-step explanation:
Every episode is 20 minutes. The points would be:
- (40, 2)
- (80, 4)
- (120, 6)
- (160, 8)
5+3 (x-7)-(x+1)
5+3 (-2-7)-(-2+1)
5+3 (-9)-(-1)
5+3 (-9)+1
5+-27+1
5-27+1
-22+1
-21
C
