3. KE8717504

Do you know the formula for a triangle?

30-60-90?

5. KE8717504

Area=1/2 X B X H

so is it: .5 x 12 x 5?

7. KE8717504

yes.

and for the second problem?

9. KE8717504

That is a rectangular. So u will use the formula for that

what formula?

11. KE8717504

A=L*W

Idk how to do that one..

and btw, .5 x 12 x 5 is 30. that's not an option..

@KE8717504 ?

@sabeelio do you know how to do this?

16. sabeelio

okay so you must use pythagoren theorem since this is a right triangle which is a^2 + b^2 = c^2

17. sabeelio

a and b are the legs and c is the hypotenus so plug in your values into the equationa nd you'll ge tyour answer

18. sabeelio

19. sabeelio

so what do you think your equation would be?

im confused..

are you saying it'd be: 12^2+ 6^2 = c^2?

@sabeelio

23. sabeelio

yes exactly then just solve for c and that is your asnwer

24. sabeelio

so uoy have 144 +25 = 169 and the square root of 169 is 13 so that is your answer

25. sabeelio

now if you apply that to the 2nd question and find the value of c you can get the right answer there as well, it is a rectangle so it is 16 on top and bopttom and 12 on left and right and split into 2 triangleks, so you just find the hypotenus (c) of one of the triangles and you will get your answer