Answer:
4.99 units
Step-by-step explanation:
Considering ∆ABD in the figure given, <ABD = <ABC = 90° (angle on a straight line)
Therefore, we would consider ∆ABD as a right angled triangle having side AB = 3 units, and angle D = 31°
==>Use trigonometric function to solve for the length of side BD
Side BD is the adjacent side to the angle given, while side AB is the opposite side to the angle given.
Thus,
tan D = opposite/adjacent
tan 31 = 3/BD
0.6009 = 3/BD
multiply both sides by BD
0.6009*BD = 3
Divide both sides by 0.6009 to make BD the subject of formula
BD = 3/0.6009
BD ≈ 4.99 units
The answer is 168. 12% is also 0.12. 150(0.12) is 18. 150+18=168
Part a: hexagon is a six sided polygon.
Part b: dodecagon is a 12 sided polygon.
Part c: decagon is a 10 sided polygon.
Explanation:
Part a: The given polygon consists of 6 sides.
Hence, a polygon with 6 sides is called as hexagon.
Part b: The given polygon consists of 12 sides.
Hence, a polygon with 12 sides is called as dodecagon.
Part c: The given polygon consists of 10 sides.
Hence, a polygon with 10 sides is called as decagon.
It would be a straight line
