deerboy8080
deerboy8080 deerboy8080
  • 29-04-2017
  • Mathematics
contestada

Point H is the incenter of triangle ABC. Find BD. a. 7.5
b. 8.5
c. 9.2
d. 9.7

Point H is the incenter of triangle ABC Find BD a 75 b 85 c 92 d 97 class=

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jdoe0001 jdoe0001
  • 29-04-2017
check the picture below

notice, using the 30-60-90 rule, since that triangle is a 30-60-90 triangle, we get 11 = 2x
Ver imagen jdoe0001
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mreijepatmat
mreijepatmat mreijepatmat
  • 29-04-2017


Triangle HDB is a right triangle with 60 & 30 degrees, then it is semi equilateral triangle where  HB= 11 & HD =5.5. Now apply Pythagoras  you will find
DB = 9.526 (there is a mistake in the a,b,c,d)

Answer Link

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