Please HELP Examine the diagram
1 answer:
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Answer:
The polynomial for the sum of the shaded r² - 20
Step-by-step explanation:
Given as :
The figure is shown which is of concentric circle with radius B , A , r
The radius B = 4 unit
The radius A = 6 unit
Let The sum of shaded portion = x unit
Now, The circumference of circle = 2 R , where R is the radius
So, for circle with radius B.
The circumference = 2 R = 2
B
Or, The circumference = 2 × 4 = 8
<u>Similarly</u>
For circle with radius A.
The circumference = 2 R = 2
A
Or, The circumference = 2 × 6 = 12
Now, <u>The area of circle with radius r is</u>
Area = ×radius × radius
Or, Area = r²
Now,
The sum of shaded region area = The area of circle with radius r - ( The circumference with radius B + The circumference with radius A )
Or, The sum of shaded region area = r² - ( 8
+ 12
)
Or, The sum of shaded region area = r² - 20
Hence The polynomial for the sum of the shaded area is r² - 20
Answer
Answer:
Check Explanation
Step-by-step explanation:
The map isn't available, but, one can draw this bearings with the descriptions given
Angles for bearings are usually drawn, reading from the north direction.
A sketch of the described bearings and locations of the stadium, university and the hospital is presented in the attached image to this question.
For the sketch on the map.
On The map, draw a four-cardinal points' cross at the stadium draw a line from the bearing 050° from the stadium's four cardinal points' cross. Leave the line as it is.
Then, draw another four cardinal points' cross at the hospital and draw a line from the bearing 300° from the hospital's four cardinal points' cross.
Wherever the line from the hospital meets the line from the stadium, is where the University is located.
Hope this Helps!!!!
