Question

Here's a hard geometry problem. I really need your help,

Thanks!

Answer 1

in whatever format you like best :)

Answer 2

in other words; find the angle for c and calculate the line :)

Answer 3

when we have an "angle" inside of a circle; lets start with that.

we know that the arc length = the angle when the angle is AT THE CENTER of the circle


90 degree angle = 90 degree arc.

now pull that angle along the diameter to the edge of the circle; the arc length is the same, but the angle has changed.

The arc length is now 2 times the angle

Answer 4

this is true for any way we position the angle on the circle

Answer 5

so if the arc length is 90, and half of that would be the angle, that makes those two angles 45, but angle c cant be that length?

Answer 6

what I got so far

Answer 7

add 47 and 57 to find the arc on the left

Answer 8

thats spurious; need to split the left side some how :)

Answer 9

angle DCQ is equal to half the arc measurement of arc DC.

Answer 10

okay

Answer 11

which would be a :)

Answer 12

all right

Answer 13

couldnt recall that "tidbit" :)

Answer 14

hey thanks guys for all the help, and thanks for showing me how to do it in black and white!

Answer 15

but either of you before you go, i have several problems to do that are all similar, could you show me how to do one so I can knock them all out?

Answer 16

so steps:
1. arc ABC = 2*angle D = 152
2. arc DC = 360 - arc AD - arc ABC = 114
3. angle DCQ = 1/2 arc DC = 57

Answer 17

oooh thanks!

Answer 18

i need help amistre