Question

A cone of height 7 cm and base radius 3cm is carved a from revtangular block of 10cm * 5 cm * 2 cm.The percentage of wood wasted is

Answer 1

Answer:

Step-by-step explanation...

Volume of cone = 1/3 (πr²h)

                         

Volume of cuboid block = L × B × H

                                        = (10 × 5 × 2) cm³

                                        = 100 cm³

Wood Wasted = Volume of Cuboid Block - Volume of Cone

                       = 100 cm³ - 66 cm³

                       = 34 cm³

Percentage of wood wasted = (wasted wood / volume of cuboid block) ×100

                                              = (34/100)×100

                                             = 34%

∴ 34% wood was wasted.

Hope it helps you...