Which choice shows equations that can be used to find the area of JKL?
(Theres 2 triangles, RST with a base of 18 cm and height of 9 cm, and JKL, with a base of 12 cm and height of x cm.)

Question

Which choice shows equations that can be used to find the area of JKL?
(Theres 2 triangles, RST with a base of 18 cm and height of 9 cm, and JKL, with a base of 12 cm and height of x cm.)

anonymous · Answer

Please explain

anonymous · Answer

the area of a triangle = 1/2 * base * height

parthkohli · Answer

Do the triangles have the same areas?

anonymous · Answer

for jkl base = 12 and height = h

anonymous · Answer

no, RST has a height of 9 cm and a base of 18 cm, JKL has a height of unknown cm and base of 12 cm.

anonymous · Answer

* height = x

parthkohli · Answer

1/2 * Base * Height is the area:
6x is the area

anonymous · Answer

I think i know the answer, H, first use 9/18 =12/h and then use are= 1/2 (12h)

anonymous · Answer

sorry my pc is slow

parthkohli · Answer

Yeah, that's exactly what I stated. 6x(or 6h) is the area. :)

anonymous · Answer

So thats the answer? tnx, Parth!

parthkohli · Answer

My pleasure :)

anonymous · Answer

:D