C = 9 m the perimeter is all the sides added together you have 9 +8 that is 17 add another 9 and that equals 26 which is the perimeter.<span />
Answer:
arc FD = 236°
Step-by-step explanation:
The measure of the arc is equal to the measure of the central angle it subtends, thus
arc FD = arc FE + arc ED = 146° + 90° = 236°
Answer:
(√138)/24
Step-by-step explanation: