9
Find the missing angle.
20"
80°
100°
50
80°
70°

C

Step-by-step explanation:

Hello There!

Remember the angle triangle rule which states that all of the angles in a triangle will add up to equal 180

to find the missing angle we subtract the given angles from 180

180-20-80=80

therefore the value of the missing angle is 80

80°

Step-by-step explanation:

20°+80°+missing angle=180°

missing angle=180°-100°=80°

n

step-by-step explanation:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: