Answer:
see explanation
Step-by-step explanation:
Given
A = [tex]\frac{1}{2}[/tex] bh
a. substitute b = 6 and h = 5 into the formula
A = [tex]\frac{1}{2}[/tex] × 6 × 5 = [tex]\frac{1}{2}[/tex] × 30 = 15 units²
b.
Multiply both sides of the formula by 2
2A = bh, that is
bh = 2A ← divide both sides by b
h = [tex]\frac{2A}{b}[/tex] = [tex]\frac{2(16)}{4}[/tex] = [tex]\frac{32}{4}[/tex] = 8
c
Using
bh = 2A ← divide both sides by h
b = [tex]\frac{2A}{h}[/tex] = [tex]\frac{2(12)}{4}[/tex] = [tex]\frac{24}{4}[/tex] = 6
