BD Merit - Freelancing, BCS, Bank, Primary, Admission, NTRCA

1 . The height of a cylinder is four times the radius of the cylinder. If the volume of the cylinder is 256 cm², what is the radius of the cylinder.

View Answer

Workspace

Report

Answer: Option A

Explanation:

To find the radius of the cylinder, we can use the formula for the volume of a cylinder, which is given by:

Volume = π * r^2 * h

where:

We are given that the height of the cylinder is four times the radius, which can be expressed as h = 4r.

We are also given that the volume of the cylinder is 256 cm³. Plugging these values into the volume formula:

256 = π * r^2 * (4r)

Now, we can solve for r:

256 = 4πr^3

Divide both sides by 4π:

r^3 = 64

Now, take the cube root of both sides to find r:

r = ∛64

r = 4

So, the radius of the cylinder is 4 cm.

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

প্রিমিয়াম প্ল্যান: ৩ মাস

199 ৳

৯০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।