The volume of a right circular cone is 45 cubic centimeters, and the radius of the base is 3 centimeters. What is the height of the cone in centimeters?

5cm

Step-by-step explanation:

Given parameters:

Volume = 45cm³

Radius  = 3cm

Unknown:

Height of the cone  = ?

Solution:

Volume of cone is given as ;

  V = r² h

r is the radius

h is the height

      45  =  x 3² x h

      45  = 3π x h

       h  =   = 4.77cm

5cm is the closest answer choice

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐

150.6

all i did was i multiplied 5.02 by 30