Geometry???

Ribbon H: Geometry???
Geometry Test tomorrow?
I have a geometry test tomorrow and I always have problems studying for tests ad especially math. Does anybody have any suggestions? I want to get a 100. I have to prove to my dad that I can get a 100 in math
Just simple stuff. Angle bisectors, circles, polygons, clock problems. That’s what i really don’t get. The clock problems!
yeah like if it is 2:30 what angle are the clock hands at. The hour hand would be half way to the three. I don’t get how to figure those out.

Answers and Views:

Answer by Elle J
that’s hard to explain over the internet.

the clock is a circle
every 15 minute quadrant is 45 degrees…every 10 minutes is 30 degrees, every minute is 6 degrees (360 degrees in a circle, divided by 60 minutes)….you can add up the minutes to make degrees.

if the hands are on 10 minutes past the hour and 30 minutes past teh hour (2:30), subtract 10 from 30, you get 20 minutes. 20 times 6 (degrees per minute) is 120 degrees.

I don’t know if that helps much

Answer by roy40372
YOU BETTER LEARN ANGEL AND DEGREE AND FAST

Answer by Fleadh Cheoil
Make shure all your questins are answered correctly and you will get 100 points, otherwise known as an A.

Answer by Diane M
Elle is right – it depends on whether you’re doing formal or informal geometry. I can give you some general hints, though.

First off, one thing beginning students often neglect is vocabulary. It seems so trivial, but in mathematics things are defined very precisely. If you know and understand the definitions, many problems become incredibly easy. For instance, if I ask you if two lines that never meet are necessarily parallel, knowing that parallel means two lines IN A PLANE will tell you (correctly) that the answer is “no” and give you a quick counterexample.

If you’re studying postulates and theorems, be sure you know them – especially the most recent ones.

Go back over your returned homework. Make sure you understand how each of the problems there is worked and especially why it works that way. Ask a lot of “why” questions. The better you know why something works the way it does, the less likely it will turn around and bite you.

If you have any specific questions, feel free to post them here.

Edit: Can you be more specific about “clock problems”? Do you mean things like “what angle does the minute hand traverse between 1:00 AM and 1:20 AM”?

Answer by apolitical
Clock problems are relatively straightforward. 1 hour or 5 minutes is 1/12 of the distance around the clock, or 1/12 of 360 degrees. This is 30 degrees. 15 minutes (or 3 hours) is 90 degrees. 1 minute is 1/60th of 360 degrees, or 6 degrees. So you can easily calculate the angle made when the time is, say 3:07 (seven minutes after 3) 7×6 = 42 degrees; 3 pm is 90 degrees. So the angle between them is 90 – 42 = 48 degrees.