Answer:
[tex]\huge\boxed{\sf area \ of \ \triangle= 45 \ cm^2}[/tex]
Explanation:
[tex]\huge\boxed{\sf area \ of \ \triangle = \frac{1}{2}* base * height }[/tex]
[tex]\huge\boxed{\sf area \ of \ \triangle= \dfrac{1}{2} * 12 * 7.5 }[/tex]
[tex]\huge\boxed{\sf area \ of \ \triangle= \frac{1}{2}*90 }[/tex]
[tex]\huge\boxed{\sf area \ of \ \triangle= 45 }[/tex]
