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115
10
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Find the area of triangle DGF.

 

 Feb 4, 2021
 #1
avatar+159 
0

The answer is 45, I can't put a explanation but if you want one reply.

 

 

 

 

 

 

 

 

🐺🐺🐺

 Feb 4, 2021
edited by vockeyvockvock  Feb 4, 2021
 #2
avatar+1209 
+7

tan∠EFA = 30 / 18

 

DG = tan∠EFA  * DF

 

[DGF] = 30 cm2

or

18 / 30 = 6 / DG

 

DG = 10

 

[DGF] = 1/2(10 * 6)

 Feb 4, 2021
edited by Guest  Feb 4, 2021
edited by jugoslav  Feb 4, 2021
 #4
avatar+268 
+4

I disagree as AB is 30cm and not DG

Even if DG was 30, that's not the way to find the area of a triangle!

So DGF can't be 30 square.

IhaveOBJD  Feb 4, 2021
edited by IhaveOBJD  Feb 4, 2021
 #5
avatar+159 
0

Yes I agree with IhaveOBJD, there's no possible way for DGF to be 30, 30 = AB or BC or CD or AD, not DGF area.

 

 

 

 

🐺🐺🐺

vockeyvockvock  Feb 4, 2021
 #8
avatar+1472 
+2

Tesla would agree with both, Jugoslav and Alan because their answers are correct!!! laugh

Dragan  Feb 4, 2021
 #10
avatar+268 
+6

We were talking to a guest answerer who said it was the answer was 900 or 30^2. Apparently, they removed it.

IhaveOBJD  Feb 5, 2021
 #3
avatar+268 
+6

Pls do!!!

 Feb 4, 2021
 #6
avatar+159 
-2

@cphill is my answer right?

 Feb 4, 2021
 #7
avatar+32112 
+7

I agree with jugoslav:

 Feb 4, 2021
 #9
avatar+47 
0

Is this a Math Masters problem?

 Feb 4, 2021

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