Answer:
Option (D).
Step-by-step explanation:
AB=[tex]\sqrt{(7-0)^{ ^{2}} +(3-3)^{2}[/tex]
AB=7 unit
BC=[tex]\sqrt{(7-7)^{ ^{2}} +(7-3)^{2}[/tex]
BC=4 unit
Area of a triangle=[tex]\frac{1}{2}[/tex]×base×height
Area of a triangle ABC=[tex]\frac{1}{2}[/tex]×AB×BC
Area =[tex]\frac{1}{2}[/tex]×7×4
Hence,Area of a triangle=14 [tex]unit^{2}[/tex]
