Answer:
14cm
Step-by-step explanation:
the area of a triangle is base x height / 2.
if you have the area and base, you can use basic algebra to get the answer.
168 = 14 x h / 2,
then you multiply both sides by 2,
2 x 168 = 14 x h,
then you divide both sides by 14 to isolate h,
2 x 168 = h,
14
then input the values into a calculator and you should get: 14
