The slant height of a cone makes an angle 30 with its height the slant height is 40cm
i) what is the relation connecting the radius ,the height and the slant height of a cone
ii) what is its radius
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Answer:
- Relation is that h²=r²+l²
- In this triangle cos 30°= b/h
=>√3/2=r/40
=>r=20×√3
=>r=34.64 cm
MARK BRAINLEIST
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