A solid cylinder has a radius of 3.5 m and a height of h h\,h m.
The total surface area of the cylinder is 98π 98\pi\,98π m2^22.
Find the value of hhh.
Practise OCR GCSE Maths Cylinders with exam-style questions for Foundation and Higher tier. 98 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.