Question
In $\triangle\text{ABC, }\angle\text{C}=\angle\text{A},$ BC = 4cm and AC = 5cm. then, AB =?
- 4cm
- 5cm
- 8cm
- 2.5cm
✓
Answer
- 4cm
Solution:
In $\triangle\text{ABC,}$
$\angle\text{C}=\angle\text{A}$
$\Rightarrow\text{AB = BC}$ (sides opposite to equal angles are equal)
$\Rightarrow\text{AB = 4cm}$
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