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Do you know the formula for a triangle?

30-60-90?

Area=1/2 X B X H

so is it: .5 x 12 x 5?

yes.

and for the second problem?

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

what formula?

A=L*W

Idk how to do that one..

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

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

the same theorom should help with your answer for number 2

so what do you think your equation would be?

im confused..

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

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

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