Find the volume and total surface area of the composite figure below.

Volume = 6467.492mm³

Surface area = 1332.035mm²

Step-by-step explanation:

volume of a cone is r²h. V=10²(24)=7539.822mm³

volume of a sphere is 4/3r³.  V=4/3(8³)=2144.66mm³

Since it's a half of a sphere, it would be 1072mm.33³

7539.822-1072.33=6467.492mm³

Surface area of a cone is r(r+√h²+r²)=1130.97

area of a circle= r²=201.06

surface area of a sphere is 4r²=804.25

Since it's a half sphere, it would be 402.125

1130.97-201.06+402.125=1332.035mm²

step-by-step explanation:

1. practice, practice & more practice

2. review errors

3. master the key concepts

do not try to memorise the processes.

4. understand your doubts.

5. create a distraction free study environment

6. create a mathematical dictionary

7. apply maths to real world problems.

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2