MCQ
Area of the given triangle is:
- A$78\ cm^2$
- B$60\ cm^2$
- ✓$30\ cm^2$
- D$32.5\ cm^2$
✓
Answer
Correct option: C.
$30\ cm^2$
In the given triangle,
$\text{Base}(\text{BC})=\sqrt{13^2-12^2}=\sqrt{169-144}=5\text{cm}$
Area of triangle ABC $=\frac{1}{2}\times\text{BC}\times\text{AB}$
$=\frac{1}{2}\times5\times12$
$=30\text{ sq.cm}$
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