Given: Radius of lower circular end = r = 27 cm

Radius of upper circular end = R = 33 cm

Slant height = l = 10cm

Total surface area of frustum = πr2 + πR2 + π(R + r)l cm2

Here h height of frustum is not given and we need h to find the volume of frustum therefore we must first calculate the value of h as follows

using formula for slant height and with the help of given data we get

Squaring both sides

100 = 36 + h2

h2 = 64

h = 8

As length cannot be negative

h = 8 cm

= 22 × 8 × 129

= 22704 cm3

capacity = volume of frustum = 22704 cm3

Total surface area of frustum = πr2 + πR2 + π(R + r)l cm2

= (22/7) × (1089 + 729 + 600)

= (22/7) × 2418

= 7599.428 cm2

total surface area = 7599.428 cm2

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