wilsono54 wilsono54
  • 19-09-2022
  • Mathematics
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i) Write down an expression for A in terms of r, h and π.

(ii) A tin of height 6cm has surface area 54πcm2

. What is the radius of the tin?

(iii) Another tin has the same diameter as height. Its surface area is 150πcm2.

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