I will give you 29 points
B. 162
C. 198
D. 252
Please explain!!!
Answer:
D.252
Step-by-step explanation:
In this question, We have to find which rotation about its center will carry a regular decagon onto itself?
A decagon : 10 sided polygon
As we know, a full rotation can be 360°.
For a decagon: 360/10 =36
For a decagon, any multiple of 36 can map onto itself.
In our options only 252 is the multiple of 36.
So, correct answer is option D252
Answer:
The distance between both stadiums is:
2215.49 m - 461.46 m =1754.03 m
Step-by-step explanation:
Look at the attached picture:
Lets say that the stadium on the left is stadium 1 and stadium 2 is on the right.
Using the angle property of alternate angles the angle above stadium 1 is 72.9° and the angle above the stadium 2 is 34.1°
By using trigonometric function of tangent we solve it as:
We know that tanθ = opposite / adjacent
Therefore,
tan 72.9°=1500/ adjacent
Now
adjacent = 1500/tan 72.9°
adjacent = 461.46 m
Solve for next angle:
Tan 34.1°=1500/ adjacent
adjacent = 1500/tan 34.1°
adjacent = 2215.49 m
Therefore the distance between both stadiums is:
2215.49 m - 461.46 m =1754.03 m ....