Question

the diameter of the base of a right circular cylinder is 4.2 cm and height is 1 cm find the area of the curved surface in centimetre square

Answer 1

✨✨Hey here is your answer ✍✍........✨✨

Diameter of the base of a right circular cylinder is 4.2 cm.....

radius of the right circular cylinder
⭕ → diameter/2
→ 4.2/2 = 2.1 cm⭕... ..
height of the right circular cylinder = 1cm

formula:.
curved surface area- 2πrh
→ 2×22/7×2.1×1...
→ 13.2 cm


hope it will help you......
please mark it as braniliest

Answer 2

Curved surface area of cylinder=2πrh =2*22/7*2.1*1 =2*22*0.3*1 =44*0.3 =13.2cm²