Math, asked by Joddar3899, 10 months ago

A toy is in the form of a cone mounted on hemisphere diameter of the base and the height of the cone are 3 and8cm respectively determine the surface area of the toy

Answers

Answered by devilpac321
0

²Answer:

Step-by-step explanation:Given= diameter of the cone=3cm.

Height of the cone= 8cm. ;To find= the surface area of

the toy.

Therefore, radius of the cone= 3/2= 1.5cm.

First, find the slant height of the cone.

Slant height= √(h)*(h)+(r)*(r)cm

=√(8)*(8)+(1.5)*(1.5)cm

=√64+2.25cm

=√66.25cm

=5√265cm

Therefore, l = 5√265cm.

Therefore, the surface area of the conical toy= πrlcm*cm

=22/7*1.5*5√265cm*cm

=33/7*5√265cm*cm

=23.57√265cm*cm

Therefore, the surface area of the conical toy is 23.57√265cm²

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