# Lampshade

The cone-shaped lampshade has a diameter of 30 cm and a height of 10 cm. How many cm

^{2}of material will we need when we 10% is waste?**Your answer:**Tips to related online calculators

Our percentage calculator will help you quickly calculate various typical tasks with percentages.

Pythagorean theorem is the base for the right triangle calculator.

See also our trigonometric triangle calculator.

Pythagorean theorem is the base for the right triangle calculator.

See also our trigonometric triangle calculator.