C-16-Q152mediumsingle_mcq

Area of the curved surface of a right circular cylinder of radius $r$ and height $h$ is —

a $\pi r^{2}h$
b $2\pi r h$
c $2\pi r(r+h)$
d $\pi r h$

ব্যাখ্যা

The curved (lateral) surface of a cylinder is the rectangle formed by unrolling it, with width equal to the base circumference $2\pi r$ and height $h$ . Hence the curved surface area is $2\pi r h$ .

এই অধ্যায়ের আরও প্রশ্ন

C-16-Q153Total surface area of a right circular cylinder of radius and height is —
C-16-Q154The volume of a right circular cylinder of radius and height is —
C-16-Q155Cylinder of radius cm and height cm has approximate volume —
C-16-Q156Cylinder of radius cm and height cm has approximate total surface area —
C-16-Q157Cylinder of radius cm and height cm has volume approximately —
C-16-Q158Cylinder of radius cm and height cm has total surface area approximately —
C-16-Q159A rectangle cm by cm is revolved about its longer side. The solid formed is a —
C-16-Q160The curved surface area of a right circular cylinder is sq cm and its volume is cu cm. The radius is —
C-16-Q161With curved area and volume , the height of the cylinder is approximately —
C-16-Q162Inner and outer diameters of an iron pipe are cm and cm; height m. With density g/cm³, weight (kg) is approxim

Chapter 16: Mensuration — সব প্রশ্ন দেখুন (210টি) →

Area of the curved surface of a right circular cylinder of radius $r$ and height $h$ is —

\pi r^{2}h

2\pi r h

2\pi r(r+h)

\pi r h

ব্যাখ্যা

The curved (lateral) surface of a cylinder is the rectangle formed by unrolling it, with width equal to the base circumference $2\pi r$ and height $h$ . Hence the curved surface area is $2\pi r h$ .

Area of the curved surface of a right circular cylinder of radius rrr and height hhh is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Area of the curved surface of a right circular cylinder of radius rrr and height hhh is —

ব্যাখ্যা

এই অধ্যায়ের আরও প্রশ্ন

Area of the curved surface of a right circular cylinder of radius $r$ and height $h$ is —

Area of the curved surface of a right circular cylinder of radius $r$ and height $h$ is —