Search found 3 matches
Equilateral triangles are 60 degrees for each angle, say triangle ABC and since it's inscribed inside a circle, then the corresponding angles AOB, AOC, and BOC are 60*2=120 where O is the centre of the circle, and these triangles are isosoles trangles with sides r. Knowing one of the angles and the ...
- by helen123
Thu Feb 07, 2008 3:01 pm- Forum: Data Sufficiency
- Topic: Nova geometry D.S set c - q 17
- Replies: 2
- Views: 2055
Was just looking at this one, I think it should be solved like this
1) 10-z < z-x which resolves to 5+x/2 <z> average
SUFF
2) You'd have to sub # in there, cuz you can't use the condition given in 1) for 2)
x =1 , z = 5, A = 5.5, then z <A> A
INSUF
so answer is A
- by helen123
Thu Feb 07, 2008 2:17 pm- Forum: Data Sufficiency
- Topic: Y/N
- Replies: 7
- Views: 2228
How to approach this?
For every positive even integer n, the function f(n) is defined to be the product of all the even integers from 2 to n, inclusive. If p is the smallest prime factor of h(100) +1, then p is between 2 and 10 between 10 and 20 between 20 and 30 between 30 and 40 greater than 40 I guessed greater and 40...
- by helen123
Thu Jan 31, 2008 2:16 pm- Forum: Problem Solving
- Topic: How to approach this?
- Replies: 1
- Views: 1374