## anonymous one year ago Bianca needs to paint a logo made using two right triangles. The dimensions of the logo are shown below. What is the difference between the area of the large triangle and the area of the small triangle?

1. anonymous

2. anonymous

3. anonymous

@Michele_Laino @lυἶცἶ0210

4. anonymous

5. Michele_Laino

the area of the small triangle is: A=(6*2)/2=...

6. anonymous

12 but what does /2 stand for?

7. Michele_Laino

since, in general the area of a triangle is: A= (base* height)/2

8. anonymous

so 6*2 *1/2?

9. Michele_Laino

yes!

10. Michele_Laino

what do you get?

11. anonymous

6

12. Michele_Laino

correct!

13. Michele_Laino

similarly, the area of the other triangle is: $\Large A = \frac{{base \times height}}{2} = \frac{{3 \times 7}}{2} = ...?$

14. anonymous

so its 27/2

15. Michele_Laino

$\Large A = \frac{{base \times height}}{2} = \frac{{3 \times 7}}{2} = \frac{{21}}{2} = ...?$

16. Michele_Laino

what is 21/2=...?

17. anonymous

10.5

18. Michele_Laino

correct! so total area is: 6+10.5=...?

19. anonymous

16.5!! (: Yay

20. Michele_Laino

:)

21. anonymous

Its makes so much sense now c: Thank you!

22. Michele_Laino

:)

23. Michele_Laino

I'm very sorry the right option is B) since: 10.5-6=4.5 cm^2