02-05-2021
Mathematics

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In the figure, a triangular board ABC is right-angled at B. The
lengths of the two legs are 15 cm and 20 cm. If it is rotated about its
hypotenuse, two circular cones are obtained.

(a) Find the height BN of the board with AC as the base.

In the figure a triangular board ABC is rightangled at B Thelengths of the two legs are 15 cm and 20 cm If it is rotated about itshypotenuse two circular cones class=

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02-05-2021

Measure of BN = 12 cm

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