Question

find the volume of wood of a cylindrical pipe having internal radius 8 cm height 14 cm. and thickness 1 cm​

Answer 1

Answer:

784 cm²

Step-by-step explanation:

vol. of pipe = πR²h - πr²h

⇒πh (R² - r²)

⇒$\frac{22}{7}$× 14 (81 - 64 )

⇒44 × 17

⇒ 748