MCQ
$\triangle \text{ABC}$ is a right triangle right angled at A. If $AB = 24cm$ and $AC = 7cm,$ then $BC =$
- A$31\ cm$
- B$17\ cm$
- ✓$25\ cm$
- D$28\ cm$
✓
Answer
Correct option: C.
$25\ cm$
In right traingle $ABC,$
$BC^2 = AC^2 + AB^2$
$\Rightarrow BC^2$
$= (7)^2 + (24)^2$
$\Rightarrow BC^2$$=49 + 576$
$\Rightarrow BC^2$
$= 625$
$\Rightarrow BC^2$
$= (25)^2$
$\Rightarrow BC = 25cm$
Hence, the correct answer is option $(c).$
$BC^2 = AC^2 + AB^2$
$\Rightarrow BC^2$
$= (7)^2 + (24)^2$
$\Rightarrow BC^2$$=49 + 576$
$\Rightarrow BC^2$
$= 625$
$\Rightarrow BC^2$
$= (25)^2$
$\Rightarrow BC = 25cm$
Hence, the correct answer is option $(c).$
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