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Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
TRICKY - Each edge of the above cube has length 1. If an ant
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17 Jun 2018, 07:30
17 Jun 2018, 07:30
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Each edge of the above cube has length 1. If an ant walks from point A to point B along the OUTSIDE of the cube, what is shortest distance the ant must travel?
A) √3
B) 2
C) √5
D) √6
E) √7
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: TRICKY - Each edge of the above cube has length 1. If an ant
[#permalink]
20 Jun 2018, 05:34
20 Jun 2018, 05:34
3
GreenlightTestPrep wrote:
Each edge of the above cube has length 1. If an ant walks from point A to point B along the OUTSIDE of the cube, what is shortest distance the ant must travel?
A) √3
B) 2
C) √5
D) √6
E) √7
If we open up the cube, we get something like this....
Let x = the distance from A to B
Since we have a right triangle, we can apply the Pythagorean Theorem to get: 1² + 2² = x²
Simplify to get: 1 + 4 = x²
So, 5 = x², which means x = √5
Answer: C
Cheers,
Brent
Re: TRICKY - Each edge of the above cube has length 1. If an ant
[#permalink]
27 Mar 2022, 05:10
27 Mar 2022, 05:10
But why are we opening the cube? It just says the ant walks on the outer edge?
Each edge of the above cube has length 1. If an ant walks from point A to point B along the OUTSIDE of the cube, what is shortest distance the ant must travel?
A) √3
B) 2
C) √5
D) √6
E) √7
If we open up the cube, we get something like this....
Let x = the distance from A to B
Since we have a right triangle, we can apply the Pythagorean Theorem to get: 1² + 2² = x²
Simplify to get: 1 + 4 = x²
So, 5 = x², which means x = √5
Answer: C
Cheers,
Brent
GreenlightTestPrep wrote:
GreenlightTestPrep wrote:
Each edge of the above cube has length 1. If an ant walks from point A to point B along the OUTSIDE of the cube, what is shortest distance the ant must travel?
A) √3
B) 2
C) √5
D) √6
E) √7
If we open up the cube, we get something like this....
Let x = the distance from A to B
Since we have a right triangle, we can apply the Pythagorean Theorem to get: 1² + 2² = x²
Simplify to get: 1 + 4 = x²
So, 5 = x², which means x = √5
Answer: C
Cheers,
Brent
