1.

htof the earthsizeonDlaath44Tattaight OA wethe rectangular plot? 5omm.inTo what extent will theheigll of inner diameter 14 m is dug to a depth of 8 m. The earth taken out of it has14nly spread all around it to. a width of 14 m to form an embankment. Find theof the embankment so formed. nencil consists of a cylinder of wood with a solid cylinder of graphite filled inu been evenlybcr. The diameter of the pencil is 7 mm and the diameter of the graphite isgth of the pencil is 14 cm, find the volume of the wood and that of the) A lead1 mm. If the lengraphite.HOTS QUESTIONS

Answer»

a)GIVEN width of embankment = 14mits inner radius (r) = 7 m and outer radius (R) = 7+14=21m

volume of earth dug out = vol of soil in embankmentπr²h = vol of soil in embankment 22/7×7²×8000 = π h ( R²- r² )1232000 = 22/7 × h × ( 21²-7² )1232000 × 7/22 = h x 392h = 1000m

answer- 1 m



Discussion

No Comment Found