Find the length arc of DB. Leave your answer in terms of pi.

Length of arc DB = 14 π feet

Solution:

Radius AB = 18 feet

DC is the diameter of the circle.

∠CAB = 40°

Sum of the adjacent angles in a straight line = 180°

m∠DAB + m∠CAB = 180°

m∠DAB + 40° = 180°

Subtract 40° from both sides.

m∠DAB = 140°

To find the length of arc DB:

= feet

Length of arc DB = 14 π feet

1e+27

step-by-step explanation:

the answer will be the last one