Question

a woden pole is 7m high and 20cm in diameter find its weight if the wood weighs 225kg per m square

Answer 1

Answer:

Radius =10 cm =0.1 m

height =7 m

volume $$= \pi \times {r}^{2} \times h$$

=

7

22

×0.1×0.1×7

=0.22 meter cube

Density =225 kg/meter cube

225=

0.22

mass

mass =225×0.22=49.5 kg.