1.

A cone of slant height 25cm has a curved surface area of 550cmsquare find it's height​

Answer»

ANSWER:

l = 25 cm

curved surface area = 550

PIE × r × l = 550

22/7 × r × 25 = 550

550 r = 550 ×7

r = 3850 ÷ 550

r = 7 cm

To find it's height

l square = r square + h square

25 × 25 = 7 × 7 + h square

625 = 49 + h square

625 - 49 = h square

576 root = h

24 cm = h

Therefore, height is 24 cm

Step-by-step explanation:

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