the answer is 3 ft because since the two triangles are diagonal to eachother (i forgot the word) they have the same side length ratio. the ratio of the bigger triangle is 10:6.
the other triangle has 1/2 of that ratio. 10/2=5 and 6/2=3
The correct answer is the third choice, Quadrilateral.
Answer:
y=6
Step-by-step explanation:
y=3x x=2
y=3(2)
y=6