Question

height of a cone is 12cm and its base diameter is 10cm.its slant height is​

Answer 1

Answer:

The height of the slant of cone = 13 cm

Step-by-step explanation:

The radius=diameter/2=10/2=5cm

Height of the cone=12cm

The height of the slant of cone

=√(height ²+radius²)

√(12²+5²)=√(144+25)=√169=13 cm

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Answer 2

Answer:

${l}^{2} = {h}^{2} + {r}^{2} \\ base \: diametre \: = 10cm \\ radius = 10 \div 2 = 5 \\ {l}^{2} = {12}^{2} + {5}^{2} \\ {l}^{2} = 144 + 5 \\ {l}^{2} = 149 \\ l = \sqrt{149} = 12.20 \\ \: l = 12.20$

Step-by-step explanation:

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