The total surface area of a hollow cylinder which is open from both sides is 4620 sq. cm area of base ring is 115.5 sq. cm and height 7 cm. Find the thickness of the cylinder.

Explanation

To find the thickness of the hollow cylinder, we will follow these steps:

### Step 1: Understand the given information
We are given:
- Total surface area of the hollow cylinder (open from both sides) = 4620 cm²
- Area of the base ring = 115.5 cm²
- Height of the cylinder (h) = 7 cm

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