## Foreverisabell Help please! I will become a fan! picture attached below! one year ago one year ago

1. Foreverisabell

2. Grazes

Maybe this will help ( http://www.efg2.com/Lab/FractalsAndChaos/EquilateralTriangle.gif )

3. Foreverisabell

I still don't get it? @Grazes

4. Grazes

a=13|dw:1360037610134:dw| Area=base*height

5. some_someone

@Foreverisabell Triangle Formula : Area of Triangle = l * b/2 Perimeter of Triangle = a + b + c Area of Equilateral Triangle = (Sqrt(3) / 4) * l² Area of SAS Triangle = ½ * l * b * SinC where l = length, b = breadth a, b, c = sides of triangle

6. some_someone

@Foreverisabell Equilateral Triangle Definition: Equilateral triangle is a triangle that has equal length on all three sides.

7. Foreverisabell

@some_someone so you would do square root 3 divided by 4 times 12 squared?

8. Foreverisabell

still a little confused.

9. Grazes

The length of a equalateral triangle is$(x/2)\sqrt{3}$ where x is the length of one side

10. Foreverisabell

alright thanks so the answer would be 62.4 cm?

11. Foreverisabell

One more question am I correct on the following ?

12. Grazes

I have ~124.707658145 for the answer.

13. some_someone

Find the area of a equilateral triangle from the given length 3. Find the area. Area = (Sqrt(3) / 4) * l² = (1.73 / 4) * 12² = 0.4325 * 144 = 62.28 so ~ 62.354

14. Foreverisabell

I got 62.345?

15. Foreverisabell

I meant 62.354

16. some_someone

yeah i got that so the choice closest to what you have on your question (image) is 62.4 cm^2

17. Grazes

You're right. My bad. Google's calculator is being stupid.

18. Foreverisabell

Alright what about the question I just asked is my answer correct?

19. Grazes

6

20. Foreverisabell

alright thank you!

21. Grazes

(14.1*9)/(2*12)=5.2 which must round up to 6.

22. some_someone

yes, i believe so its 6. :)