## geometry

General Questions QA
Post and discuss general QA questions.

### geometry

was unable to solve this..plz help..

Posts: 183
Joined: Wed Feb 13, 2013 5:51 am

### Re: geometry

please post the OA - esp when you are posting some question as a doubt.

The answer is most likely to be option 4 - if this is the correct answer- I shall post the solution.

Posts: 183
Joined: Wed Feb 13, 2013 5:51 am

### Re: geometry

yes sir the answer is 1:24
gaurav1399

Posts: 48
Joined: Wed Feb 27, 2013 7:49 am

### Re: geometry

REFER to the figure - I assumed AB =12 AND AD = 1/2 AB = 6
Area of HGF =1/2 * 3 * 6 = 9
AREA OF Triangle GJK = 1/3 * 9= 3

And the area of the rectangle = 6 * 12 = 72

tHUS the ratio required = 3 :72 or 1 :24

Posts: 183
Joined: Wed Feb 13, 2013 5:51 am

### Re: geometry

yes sir the answer is 1:24

REFER to the figure - I assumed AB =12 AND AD = 1/2 AB = 6
Area of HGF =1/2 * 3 * 6 = 9
AREA OF Triangle GJK = 1/3 * 9= 3

And the area of the rectangle = 6 * 12 = 72

tHUS the ratio required = 3 :72 or 1 :24

sir how do we knw tht the area of the three triangles is equal?? gjk,ghk,gjf
gaurav1399

Posts: 48
Joined: Wed Feb 27, 2013 7:49 am

### Re: geometry

yes sir the answer is 1:24

REFER to the figure - I assumed AB =12 AND AD = 1/2 AB = 6
Area of HGF =1/2 * 3 * 6 = 9
AREA OF Triangle GJK = 1/3 * 9= 3

And the area of the rectangle = 6 * 12 = 72

tHUS the ratio required = 3 :72 or 1 :24
gaurav1399

Posts: 48
Joined: Wed Feb 27, 2013 7:49 am

### Re: geometry

J and K are points of trisection -