Answer:
base ≈ 100.76 cm ( to 2 dec. places )
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the height )
Here A = 785.9 and h = 15.6, thus
[tex]\frac{1}{2}[/tex] × b × 15.6 = 785.9, that is
7.8b = 785.9 ( divide both sides by 7.8 )
b ≈ 100.76
