C
B
14. If the height of the cylinder is 5 cm and the cross-sectional are
of the cylinder is 40 cm²
Find the radius of the cylinder a cm
6. Find the length of side BD
in cm
c. Find the area of the wheel
in cm²



Answer :

Step-by-step explanation:

Let's address each part of the problem:

**C. Find the radius of the cylinder:**

The formula for the cross-sectional area (\(A\)) of a cylinder is given by:

[tex]\[ A = \pi r^2 \][/tex]

Given that the cross-sectional area \(A\) is \(40 \, \text{cm}^2\) and the height \(h\) is \(5 \, \text{cm}\), we can rearrange the formula to solve for the radius \(r\):

[tex]\[ 40 = \pi r^2 \][/tex]

[tex]\[ r^2 = \frac{40}{\pi} \][/tex]

[tex]\[ r = \sqrt{\frac{40}{\pi}} \][/tex]

[tex]\[ r \approx 3.183 \, \text{cm} \][/tex]

So, the radius of the cylinder is approximately

[tex]\(3.183 \, \text{cm}\).[/tex]

**B. Find the length of side BD:**

Without a diagram or further context, it's challenging to determine side BD. Could you provide more information or clarify the context?

**14. Find the area of the wheel:**

To find the area of the wheel, we need to know the formula for the area of a circle, which is:

[tex]\[ A = \pi r^2 \][/tex]

Given that the radius

[tex]\(r\) is \(6 \, \text{[/tex]

One Question From Me

Q- Where Are You From ?

Answer in Comment

I am from India