Answer:
A = 60 units²
Step-by-step explanation:
the area (A) of a triangle is calculated as
A =
bh ( b is the base and h the perpendicular height )
By counting the squares we find
b ( horizontal line ) = 12 units
h ( vertical line ) = 10 units
then
A =
× 12 × 10 = 6 × 10 = 60 units²