Answer:
Step-by-step explanation:
law of cosines to find p
p² = 880² + 350² - 2(880)(350)cos22
p = 570.749... cm
law of sines to find ∠N
sin22/570.749 = sinN/880
N = 35.280 or 144.719
As n is the longest side, N must be the largest angle
∠N = 145°
or we can use law of cosines to find N
880² = 350² + 570.75² - 2(350)(570.75)cosN
N = 144.719° or 215.281°
as an angle > 180° cannot occur in a triangle.
∠N = 145°
