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blondinia [14]
3 years ago
13

Find the total lateral area of the following

Mathematics
1 answer:
maxonik [38]3 years ago
7 0

Answer:

15π cm²

Step-by-step explanation:

The total lateral area of a cone

= πr√h² + r²

= √h² + r² = l

h = Height = 4cm

r = radius = 3cm

Hence:

= π × 3 √4² + 3²

= 3π × √16 + 9

= 3π × √25

= 3π × 5

= 15π cm²

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