I have 2 problems that I can't figure out and my parents don't remember how to do. Please help me!! grade depends on it!!
1) Circle O has a central angle measure of X. Minor Arc DF has a measure of 4x-30. What is X?
2) PAB is a secant to circle O and meets at point A. PCD is secant to circle O and meets it at point C. PA= 4. PB= 18. PD=24. What is the length of PC?
Please help me. I would REALLY appreciate it.
2007-04-18 15:00:07 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
catbarf- the question is in my book and it doesn't even have a figure for it. if you want one then draw it. i tried but i just don't know.
2007-04-18 15:15:41 · update #1
well for number one I'm thinking that x=4x-30 so x would = 10. for the second one i think put it into a triangle but its been a while.
2007-04-18 15:14:04 · answer #1 · answered by kstar 2 · 0⤊ 0⤋
1, You need a figure for this. Your description means nothing.
2. If I remember, this involves similar triangles with the chords. So PC should be 16/3
2007-04-18 15:09:20 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋