Question

Use heron's formula to find the area of a triangle of length 7,8 and 9. Given your answer in surd form

Answer 1

Answer:

12root 5

Step-by-step explanation:

is the answer when we apply the semiperimeter we get 12 as semiperimeter then by formula we get 12(5)(4)(3) inroot when we take them out we get 12root5 as answer