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Cube

Expert replies
by gmatmachoman » Wed Mar 31, 2010 2:35 am
If the figure above is a cube, and A, B and C are
midpoints on the edges of the cube, what is the
measure of L ABC?

(A) 30
(B) 45
(C) 60
(D) 90
(E) 120
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Source: — Problem Solving |

by sanju09 » Wed Mar 31, 2010 2:36 am
gmatmachoman wrote:If the figure above is a cube, and A, B and C are
midpoints on the edges of the cube, what is the
measure of L ABC?

(A) 30
(B) 45
(C) 60
(D) 90
(E) 120
where above, heavens?
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Join the discussion

by gmatmachoman » Wed Mar 31, 2010 3:48 am
sanju09 wrote:
gmatmachoman wrote:If the figure above is a cube, and A, B and C are
midpoints on the edges of the cube, what is the
measure of L ABC?

(A) 30
(B) 45
(C) 60
(D) 90
(E) 120
where above, heavens?
Hey sanju.....

I am not sure if it is Heaven's..But pretty much invisible.....But y do u need a diagram? Try solving without it!
Join the discussion

by sanju09 » Wed Mar 31, 2010 3:53 am
gmatmachoman wrote:
sanju09 wrote:
gmatmachoman wrote:If the figure above is a cube, and A, B and C are
midpoints on the edges of the cube, what is the
measure of L ABC?

(A) 30
(B) 45
(C) 60
(D) 90
(E) 120
where above, heavens?
Hey sanju.....

I am not sure if it is Heaven's..But pretty much invisible.....But y do u need a diagram? Try solving without it!
Which three edges one need to consider, mate? A cube has 12 distinct edges of same length, I believe. A schematic diagram above could have made the mystery solved.
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Join the discussion

by ajith » Wed Mar 31, 2010 4:03 am
gmatmachoman wrote:If the figure above is a cube, and A, B and C are
midpoints on the edges of the cube, what is the
measure of L ABC?

(A) 30
(B) 45
(C) 60
(D) 90
(E) 120
I refuse to solve the question without a diagram. Mr Govardhan - Gimme my diagram!
Always borrow money from a pessimist, he doesn't expect to be paid back.
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by kstv » Wed Mar 31, 2010 5:40 am
In the absence of diagram if I try thinking in 2D. A right angle isosceles can be made by joining the mid points of the adjacent edges.
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by sanju09 » Wed Mar 31, 2010 5:54 am
kstv wrote:In the absence of diagram if I try thinking in 2D. A right angle isosceles can be made by joining the mid points of the adjacent edges.
but how can we ever ignore what is written between the lines of the stem on GMAT, why shouldn't we request gmatmachoman to edit it once, it's no crime here
The mind is everything. What you think you become. -Lord Buddha



Sanjeev K Saxena
Quantitative Instructor
The Princeton Review - Manya Abroad
Lucknow-226001

www.manyagroup.com
Join the discussion