Work out the size of angle A 9cm 11cm 38 degrees

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

c) yes, because of asa or aas