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littleones12131 littleones12131
  • 14-07-2016
  • Mathematics
Answered

If mangleBAC = 49°, find marc b c.


image shows an inscribed angle b a c

Select one:

A131 degrees
B49 degrees
C24.5 degrees
D98 degrees

Verified Answer :

Brahimilaf2
Brahimilaf2 Brahimilaf2
  • 14-07-2016

Hello , 
A + B + C = 180 
B + C = 180 - 49
B + C = 131 .

Answer Link
caylus
caylus caylus
  • 14-07-2016

Hello,
the angle in the center is the double of the inscribed angle BAC
==> arc BC=49*2=98°
Answer D

Answer Link

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