Begin by using the cosine rule to find the unknown side.
Where a- unknown side, b is 12, c is 16 and angle in between is 108°
The cosine rule...
a² = b² + c² - 2bc cosA
= 12² + 16² - (2×12×16 cos108°)
= 518.655076
Taking the positive
square root...
a = 22.774
a = 22.8 cm nearest tenth
The correct answer would be the 3rd one because the number simplified equals that
Answer:
107, there is two lines after that so 108 109 and the last line is 110 so your answer will be 107 degrees.
Step-by-step explanation:
1/10 * 4/10 = 4/100 divide both by 4 it'll be 1/25
An exterior angle is equal to the sum of the 2 non adjacent angles. In this case
100 = x + 70 Subtract 70
x = 100 - 70
x = 30
