Find the angular displacement of 8.3 revolutions.

16.6π rad

Step-by-step explanation:

Angular displacement is how much degree in radian has been covered by revolving.

So,angular displacement=8.3 revolutions

We know that, 1 revolution = 2π rad

angular displacement = 8.3 × 2π

= 16.6 π rad

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet