## anonymous one year ago Find the area of a triangle with a base length of 6 units and a height of 7 units. 10 units 13 units 14 units 21 units

1. anonymous

@Michele_Laino

2. anonymous

DO you know the formula for the area of a triangle?

3. insa

$area of \triangle= \frac{ 1 }{ 2 }\times base \times height$

4. insa

5. anonymous

no it doesnt give me a formula.. thats all it says

6. anonymous

@insa gave it to you ;)

7. insa

i gave u the formula to calculate the area

8. anonymous

i mean it doesnt give me the area

9. insa

|dw:1440441569479:dw|

10. insa

can u solve it now?

11. ikram002p

|dw:1440441747611:dw|

12. anonymous

i got 21

13. anonymous

@insa

14. ikram002p

|dw:1440441823124:dw|

15. ikram002p

ur correct @geny55 :)

16. insa

@geny55 21 is correct

17. anonymous

The probability that an event will occur is 1. Which of the following best describes the likelihood of the event occurring? Likely Certain Unlikely Impossible

18. insa

i think it would be certain

19. anonymous

ok

20. anonymous

The seventh-grade class is building target areas for a PE activity. The bases for the game will be in a circular shape. The diameter of each circle is 3 feet. Approximately, how many square feet of the turf needs to be painted for a base circle? Use 3.14 for π and round your answer to the nearest tenth. 7.1 square feet 9.4 square feet 18.8 square feet 28.3 square feet

21. insa

$area of circle= \pi \times r ^{2}$

22. insa

r stands for radius, which can be found by dividing diameter by 2 so it would be 1.5

23. anonymous

okay then what do you do

24. insa

u just put the values in the formula and calculate

25. anonymous

what do i solve

26. insa

area of circle= 3.14*(1.5)^2

27. anonymous

i got 7.065

28. insa

yeah! when u round it u get 7.1

29. anonymous

ok!

30. anonymous

31. insa

32. anonymous

@ikram002p

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