Answer:
b. 44°
Step-by-step explanation:
Reference angle = x
Hypotenuse = 21
Adjacent = 15
Apply trigonometric function CAH:



x = 44.4153086° ≈ 44° (nearest degree)
Answer:
12cm
Step-by-step explanation:
5+5=10
34-10=24
24/2
12
Answer:
There are two sets of degrees going in opposite directions along an arc. The top of the arc shows degrees from 0º to 180º from left to right. The bottom of the arc shows degrees from 180º to 0º from left to right. The smallest "tick marks" along the edge of the protractor represent 1º intervals.
Step-by-step explanation:
Tbh it doesn’t make much sense for me I think both a and b are 180 Bc a straight line equals 180 and half a circle which is mhlk equals 180 as well