Answer:
30π in
Step-by-step explanation:
Circumference of a circle = 2πr
Where r is the radius
In the given diagram, the radius is 15 in
2×π×15 in = 30π in
Based on the radius of the being 4 units and the area of the equilateral triangle, the area of the shaded area is 32.85 units².
<h3>What is the area of the shaded area?</h3>
First, find the area of the triangle.
The center of a triangle divides the median into a 2:1 ratio which means that the radius can be found as:
Radius = 1/3 x Area of Equilateral triangle
4 = 1/3 x (√3/ 2)a
a can be worked out to be:
= 8√3
The area of the triangle is:
= (√3 / 4) x a²
= (√3 / 4) x (8√3 )²
= 83.14 units ²
The area of the circle is:
= π x radius²
= 22/7 x 4 x 4
= 50.29 units²
The area of the shaded area is therefore:
= 83.14 - 50.29
= 32.85 units²
In conclusion, the area of the shaded area is 32.85 units².
Find out more on area at brainly.com/question/1297097.
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Answer:
$1620
Step-by-step explanation:
70x = 1,134 (100)
70 = 113,400
x = 1,620
Answer:
12:16
Step-by-step explanation:
28 split into two groups could be 12 : 16. To check the work, see if 3/4 is equal to 12/16. It is, so this is the accurate ratio, as 12 + 16 = 28 and 12/16 = 3:4.
