abdubasheer
abdubasheer abdubasheer
  • 20-11-2017
  • Mathematics
contestada



In ΔABC, BD bisects ∠ABC.



Find y to the nearest tenth.

A.
5.3

B.
14.4

C.
13.2

D.
9.6

In ΔABC BD bisects ABC Find y to the nearest tenth A 53 B 144 C 132 D 96 class=

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nesiyacozp2l3 nesiyacozp2l3
  • 20-11-2017
The answer would be c
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wolf1728
wolf1728 wolf1728
  • 20-11-2017
BE^2 = 8.7^2 -6.9^2
BE^2 = 75.69 -47.61
BE^2 = 28.08
BE = 5.2990565198
BE = 5.3

y^2 = 11.4^2 + 5.3^2
y^2 = 
129.96 + 28.08
y^2 = 
158.04
y = 12.5713961039

That ISN'T one of those answers either.
The problem states:
In ΔABC, BD bisects ∠ABC.
If BD bisects the triangle, how come the left side of line AC equals 6.9 and the right side equals 11.4.
Shouldn't the left side equal the right side?  (ESPECIALLY since it is bisected?)



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