http://is.byu.edu/courses/hs/GEOM-043-101/secure/imgs/math10-1377.gif
9. If mBC=63*, calculate m

Question

http://is.byu.edu/courses/hs/GEOM-043-101/secure/imgs/math10-1377.gif
9. If mBC=63*, calculate m <BPC
 a. 21º
 b. 31.5º
 c. 63º
 d. 126º
10. If  mBC=63*, calculate m <AC
 a. 21º
 b. 31.5º
 c. 63º
 d. 126º
11. If  mBC=63*, calculate m <BDC
 a. 21º
 b. 31.5º
 c. 63º
 d. 126º

ganeshie8 · Answer

IF P is the center,

mBC = m <BPC = 63

ganeshie8 · Answer

to find AC :
m<BDC =  m<BPC/2 = 63/2 = 31.5
m<ADC = 2*m<BDC = 63

m<AC = 2*m<ADC = 63*2 = 126

ganeshie8 · Answer

does that help/make sense...  ?

anonymous · Answer

something that might help in the future, any right triangle within a circle, the hypothenuse will always pass through the center

anonymous · Answer

yes it helps very much thanks

ganeshie8 · Answer

great ! good luck :)