Always add them all around and then divide the two and you should get the correct answer
Answer: 30.06
Step-by-step explanation: just multiply or type it into a calculator
is not included as a rational number !
<u>Step-by-step explanation:</u>
Here we have , following expressions & we need to identify which of the following is not a rational number . Let's find out:
We know that , Rational Number : A number which can be expressed in form of p/q , where q is not equal to zero !
Here Expressions are:
:
Let's evaluate this expression
⇒ 
⇒ 
Therefore , It is a rational number ! .
:
Let's evaluate this expression
⇒
Therefore , It is a rational number ! .
:
Let's evaluate this expression
⇒ 
⇒ 
Therefore , It is a rational number ! .
- :
Let's evaluate this expression
⇒
⇒ 
Therefore , It is not a rational number , as pi is included ! .
<h3><u>Given</u>:-</h3>
Radius(r) of sphere = 3m
<h3><u>To Find</u>:-</h3>
Volume of the sphere.
<h3><u>Formula Used</u>:-</h3>
Volume of sphere = 
<h3><u>Solution</u>:-</h3>
Volume of sphere = (putting the value of r(radius) from the above given and pie(π) = 
)
Therefore, the volume of the sphere , which can be rounded off to it's nearest tenth as 
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Hope it helps you:)
Answer:
Area of a regular decagon with a perimeter of 60 ft. = 277 squared ft
Step-by-step explanation:
Decagon has 10 sides So 60/10 = 6 (each side = 6ft )
The sum of the interior angles of a decagon is 1 440 degrees.
There are 10 equal isosceles triangles of base angles 72 degrees in a decagon
Each isosceles triangle can subdivided into 2 right-angled triangles with height h and base length = (6/2) = 3 cm and base angle 72 degrees.
Height of right-angled triangle h = 3 tan 72 ft.
Area of 1 right-angled triangle = (1/2)(3)(3 tan 72) = 13.85 squared ft
Area of decagon = 20 right-angled triangles = 277 squared ft
