Question

a toy is made by surmounting a cone at one end of a cyclinder with same radius 14cm and with heights 7cm and 14cm. find the TSA of the toy
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Answer 1

Step-by-step explanation:

so the area of the toy=area of cylinder+area of the cone

so area of cone

=πr(l+r) where l is the slant height

we are given the height only so to find the slant height

h²+b²=√slant height

7²+14²=√49+196

=15.6

so area of cone= 22/7×14(15.6+14)

700.4

area of cylinder

=2πr(r+h)

=2×22/7(14+14)

=102

700.4+102

=802.4cm