what formula and format do i use to answer this ; ATTACHED FILE; Help please

Question

anonymous · Answer

attachment

anonymous · Answer

@Bambi @muhammad9t5 @apoorvk @henrietta help ? please

apoorvk · Answer

Hmm, ever heard of the Pythagorean theorem?

anonymous · Answer

I would first solve for the h=height by letting a^2 + 9^2 = 15^2

that would equal a^2 + 81=225

then a^2=225-81

a^2= the square root of 144

a=12.

h = 12. 

then plug in 1/2(b)(h) and you have your answer.

anonymous · Answer

hello bro use Area=1/2*base*hypatenuse then you will get your answer... Then give me medal thanks for asking question from me.

apoorvk · Answer

@muhammad9t5 - am sorry, but are is NOT equal to (1/2)x(base)x(hypotenuse).

$$Area = \frac 12 \times Altitude \times Base$$

anonymous · Answer

Yes, 1/2 x base x height. please, not the hypotenuse :)

anonymous · Answer

that is right! note, we just apply Pythagorean Theorem if the triangle is a right triangle. :))

anonymous · Answer

We can apply it here, since its a right triangle.