BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

If the hypotenuse of isosceles right triangle ABC has the same length as the height of equilateral triangle DEF...

This topic has expert replies
Moderator
Posts: 2626
Joined: Sun Oct 29, 2017 2:08 pm
Followed by:2 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Manhattan Prep

If the hypotenuse of isosceles right triangle ABC has the same length as the height of equilateral triangle DEF, what is the ratio of a leg of triangle ABC to a side of triangle DEF?

A. \(\sqrt{2}/2\)
B. \(\sqrt{3}/2\)
C. \(\sqrt{3}/(2\sqrt{2})\)
D. \(\sqrt{2}/\sqrt{3}\)
E. \(\dfrac{3}{2}\)

OA C
Source: — Problem Solving |

User avatar
GMAT Instructor
Posts: 8129
Joined: Sat Apr 25, 2015 10:56 am
Location: Los Angeles, CA
Thanked: 43 times
Followed by:29 members
AAPL wrote:
Wed Jan 13, 2021 4:19 pm
Manhattan Prep

If the hypotenuse of isosceles right triangle ABC has the same length as the height of equilateral triangle DEF, what is the ratio of a leg of triangle ABC to a side of triangle DEF?

A. \(\sqrt{2}/2\)
B. \(\sqrt{3}/2\)
C. \(\sqrt{3}/(2\sqrt{2})\)
D. \(\sqrt{2}/\sqrt{3}\)
E. \(\dfrac{3}{2}\)

OA C
Solution:

Let the hypotenuse of isosceles right triangle ABC be 1; thus, the height of equilateral triangle DEF is 1 also. Furthermore, a leg of triangle ABC is 1/√2, and a side of triangle DEF is 1/√3 x 2 = 2/√3. Therefore, the ratio is (1/√2) / (2/√3) = 1/√2 x √3/2 = √3/(2√2).

Answer: C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage