Respuesta :
The area of a triangle is A = one half times the product of the base and the ht.
A = bh/2.
(base)(height) (12)(5a+7b)
Here: A = --------------------- = ------------------- = 6(5a+7b) (answer)
2 2
A = bh/2.
(base)(height) (12)(5a+7b)
Here: A = --------------------- = ------------------- = 6(5a+7b) (answer)
2 2