if the measure of the hypotenuse of a right triangle is 15cm if the base of the triangle measures 9cm. what is te area in square centimeters of the triangle??

Question

anonymous · Answer

im just going to give this to you, and hope that you try to understand it


4 square centimeters
 please explain it and ill try to hellp you understand...

anonymous · Answer

dont get it

anonymous · Answer

thats the area???

anonymous · Answer

yeah, its an area... because an area is two dimensional... do you know what that means?

anonymous · Answer

yes i just get how 4 is the area

anonymous · Answer

what don tyou get?

anonymous · Answer

how the area is 4

anonymous · Answer

oh im sorry, the area isn't 4 square cm, thats the length of the side

anonymous · Answer

oh whats the area

anonymous · Answer

you would use the area for a triangle... which woud be base times height/2  so once you have the base height and hypotenuse, you can work it out right?

anonymous · Answer

for base i have 9 h i have 13 and hypotanuse i have15

anonymous · Answer

is that right

anonymous · Answer

no, how did you get that? and ill tell you where you went wrong

anonymous · Answer

i did a2 +b2 = c2 and inputed numbers

anonymous · Answer

which numbers where?

anonymous · Answer

well i was finding a so b was 9 squared and c was 15 squared

anonymous · Answer

ok, that should have worked, what did you do after you had the numbers in (how did you solve it)?

anonymous · Answer

my anwer for a was 13.1

anonymous · Answer

how did you get that?

anonymous · Answer

by just following it through like nine squared is 81 and fifteen squared is 225

anonymous · Answer

then subtrected 81 from both sides to leave a by its self which was 174 the square root of tht is 13.1

anonymous · Answer

oh ok
so look at 225-81 again (its not 174)

anonymous · Answer

ok for area i got 54

anonymous · Answer

yay, but you should say 54 square centimeters... i got 54 square centimeters too

anonymous · Answer

ok thanks