Question

if anyone can help id mean a lot,its finding the area and height of a triangle with knowledge of the sides pic below

Answer 1

okay

Answer 2

the picture isn't up...

Answer 3

http://assets.openstudy.com/updates/attachments/5166184fe4b066fca6615b78-nisa-1365645449400-photo7.jpg

Answer 4

ignore the writing

Answer 5

Area of the triangle is 1/2 * base * height. In this case what's the base and what's the height?

Answer 6

the big triangle that is

Answer 7

i dont know the base or height

Answer 8

i know the base is less then thirteen and the height is x

Answer 9

as in you don't know the value or you don't know which side is the base?

Answer 10

the base is the thirteen side because the height is perpindicular to it

Answer 11

i used herons formula to find the area of the entire triangle which is 30 if that helps anyone

Answer 12

not sure what herons formula is but there is also another base and height of the same triangle

Answer 13

oh ab/2 , a being 12 and b being 13, if u flip the entire triangle backwars its a right triangle soooo

Answer 14

Base=5
H=12

Answer 15

yeah

Answer 16

what?? how

Answer 17

so area is 30 which you already know.
so since 1/2 * 13 * x also equals 30,

Answer 18

ok you see the other side of the triangle there's a right angle too right between the 5 and 12

Answer 19

actually since you already know the area I can just continue unless you wanna know how 5 and 12 is also the height and base?

Answer 20

yes

Answer 21

ok so you know height and base there has to be a right angle some where right. Like they have to be perpendicular.
In this case if you see the 5 or 12 length side you notice that the two sides are perpendicular. Hence they are also the height and base of the triangle