MCQ
The value of $\sqrt{20}\times\sqrt{5}$ is:
- ✓$10$
- B$4\sqrt{5}$
- C$2\sqrt{5}$
- D$20\sqrt{5}$
✓
Answer
Correct option: A.
$10$
$\sqrt{20}\times\sqrt{5}$
$=2\sqrt{5}\times\sqrt{5}$
$=2\times5$
$=10$
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