Answer:
A = 18 mi²
Explanation:
the area (A) of a triangle is calculated as
A = bh ( b is the base and h the perpendicular height )
here b = 8 and h = 4.5 , then
A = × 8 × 4.5 = 4 × 4.5 = 18 mi²
18 mi²
Using the formula:
A=36/2
A=18
Units will be mi² since it is area
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