Final answer:
Area of tile is 14 cm².
Step-by-step explanation:
Area of triangle is:
[tex]\frac{1}{2} base.height[/tex]
Putting [tex]b=3.5[/tex] and [tex]h=8[/tex] in [tex]\frac{1}{2} base.height[/tex]
[tex]\frac{1}{2}bxh=\frac{1}{2}3.5x8[/tex]
[tex]=3.5x4[/tex]
[tex]=14[/tex]