Use the formula A=1/2 bh to find the area of the triangle B = 5 1/2 and H=3 / 14

Triangle area = 1/2 times base times height

Triangle area = 1/2 x 5 1/2 x 3/14 (does not look like correct number)

Triangle area = 0.5 x 5.5 x 0.21

Triangle area = 0.5775

Did you mean:

Triangle area = 1/2 x 5 1/2 x 3 1/4?

Then

Triangle are = 0.5 x 5.5 x 3.25

Triangle area = 8.9375

You might need to keep it in fractions.