Question

Arthur is drawing triangles. All of the triangles have a base length of 5 inches. The area of the triangle is proportional to the height of the triangle.

Which table shows the proportional relationship correctly?
A.
Heights (cm) 3 5 7
Area (sq cm) 7.5 12.5 18.5


B.
Heights (cm) 6 8 10
Area (sq cm) 15 19 25


C.
Heights (cm) 4 5 6
Area (sq cm) 10 13.5 17


D.
Heights (cm) 2 4 7
Area (sq cm) 5 10 17.5

Answer 1

If the base is 8cm & the height is 12cm, then you take 8x12, which is 96, and divide it by 2, which would be 48, so the answer is A