Answer:
30
Step-by-step explanation:
17,20,23,26,29,31,34,37,40,43,46,49,51,54,57,60,63,66,69,71,74,77,80,83,86,
89,91,94,97,100
9514 1404 393
Answer:
40°
Step-by-step explanation:
Since DP is an angle bisector, the angles it creates are congruent:
∠1 = ∠2 = 20°
The requested angle is the sum of the measures of angles 1 and 2:
∠FDE = ∠1 + ∠2 = 20° +20°
∠FDE = 40°
True is A because 20 is bigger than -20
False is D because -20 IS BIGGER THAN -21
First, use triangle angle sum theorem on the triangle on the right.
180-(43+57)=80
Use vertical angles theorem,
the missing angle of the triangle on left is 80 as well.
Use triangle angle sum theory again.
2x+80=180,
x=50