The area of the track will be 78501 m². The area of the track is equal to the area of the circle.
<h3>What is the area?</h3>The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. Square meters and other similar units are used to measure area.
The area of the track is found as;
Hence, the area of the track will be 78501 m².
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Answer:
From the sum of angles on a straight line, given that the rotation of each triangle attached to the sides of the octagon is 45° as they move round the perimeter of the octagon, the angle a which is supplementary to the angle turned by the triangles must be 135 degrees
Step-by-step explanation:
Given that the triangles are eight in number we have;
1) (To simplify), we consider the five triangles on the left portion of the figure, starting from the bottom-most triangle which is inverted upside down
2) We note that to get to the topmost triangle which is upright , we count four triangles, which is four turns
3) Since the bottom-most triangle is upside down and the topmost triangle, we have made a turn of 180° to go from bottom to top
4) Therefore, the angle of each of the four turns we turned = 180°/4 = 45°
5) When we extend the side of the octagon that bounds the bottom-most triangle to the left to form a straight line, we see the 45° which is the angle formed between the base of the next triangle on the left and the straight line we drew
6) Knowing that the angles on a straight line sum to 180° we get interior angle in between the base of the next triangle on the left referred to above and the base of the bottom-most triangle as 180° - 45° = 135°.
Answer:
A=25 (Rounded)
Step-by-step explanation:
The first step is to find the length of BA which is the base, then you have the find the length of CD, the hight.
To find the distance, you need to use the distance formula which is
(It does not matter if A is x1 or is B is x1, it just has to remain consistent)
I am going to first find BA
Next, subtract accordingly
Once you do that, you want to square -6 and -6 which will give you
Now add 36 with 36 which will leave you with
Do that same thing for CD. If you did it right, you should be left with
to find the area of a triangle, you must use the formula
The Base is (BA) and the Hight is
(CD). substitute to get
Multiply the Base by the Hight to get
Divide 1,296 by 2 to get
Which is equal to
Rounding it to the nearest whole number you get
A=25
Hope this helps. Feel free to ask any follow-up questions.
Have a good day! :)
