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# pls help, an explanation would be really appreciated!

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In triangle ABC, AB = BC = 17 and AC = 16. Find the inradius of triangle ABC.

May 15, 2020

#1
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You can use the formula r = K/s for the inradius to get r = 12/5.

May 15, 2020
#2
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Actually you forgot to multiply by two(but good job)

$$r = \frac{[ABC]}{s} = \frac{120}{(17+17+16)/2} = \boxed{\frac{24}{5}}.$$