angle 5 and angle 4 are exterior angles
For a cyclic quadrilateral
The opposite angles are supplementary (meaning they sum up to 180 °)
I.e (x +20) ° + 3x ° =180 °
20 + 4x = 180
4x=180 - 20
4x = 160
Divide through by 4
x = 40 °
Angle at point A
(2x + 38) = (2(40) + 38) = 118 °
Angle at point B
3x = 3(40) = 120 °
Angle at point D
x + 20 = 40 + 20 = 60 °
Angle at point C
The total angle in a quadrilateral is 360 °
I.e 118 + 120 + 298 +
The answer would be 44.7 not 44.5
Answer:
8
Step-by-step explanation:
The question is basically <em>"Find the radius of the circle that has a circumference of 16π"</em>
<em></em>
The formula for circumference of a circle is given as 
Where
C is the circumference
r is the radius
Plugging in <em>16π</em><em> into C</em> and solving for r gives us the radius. Shown below:

the radius is 8
yes it is because thats exactly where its located