Answer:
The circumference of the circle is 28.26 m.
The area of the circle is 63.585 
.
Step-by-step explanation:
To solve for the circumference of the circle, start by using the circumference formula of a circle, which is 
. However, 3.14 will be used instead of 
for this formula.
First, the radius of the circle needs to be found. To find the radius of the circle, divide the diameter by 2 because the radius equals half of the diameter. The radius is 9 m divided by 2, which equals 4.5 m.
Next, plug in the radius into the formula, and the formula will look like 
. Then, solve the equation, and the answer will be 28.26 m.
To solve for the area of the circle, start by using the area formula of a circle, which is 
. However, 3.14 will be used instead of for this formula.
For the area, plug the radius into the formula, and the formula will look like 
. Then, solve the equation, and the answer will be 63.585 .
Answer:
200 students are boys and rest of 400 are girls
Step-by-step explanation:
Given that:
Total students = 300
1/3 students of total are boys
so.
Boys = 1/3(600)
Boys = 200
For finding number of girls:
Girls = total - boys
Girls = 600 - 200
Girls = 400
i hope it will help you!
Answer:
n=8
Step-by-step explanation:
5(8)=40
40 +35=75
glad to help:)
If you represent the problem in a diagram, you will form a triangle with 3 known length of the sides. When you are given all sides, and you are asked to find an angle, you can use the cosine law.
b^2 = a^2 + c^2 - 2ac*cosB
1.4^2 = 1.9^2 + 1^2 - 2(1.9*1)(cosB)
B = 45.78°
