A cone has radius 21 cm and height 28 cm. What is its slant height?
शंकु की त्रिज्या 21 cm और ऊंचाई 28 cm है तो तिर्यक ऊंचाई कितनी होगी?
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Correct Answer
B. 35 cm / 35 cm
Explanationl = √(21² + 28²) = √1225 = 35 cm.
l = √(21² + 28²) = √1225 = 35 cm।