Evaluate square root of 10* square root of 15

$\sqrt{10} \cdot \sqrt{15}$

Combine using the product rule for radicals.

$\sqrt{10 \cdot 15}$

Multiply $10$ by $15$ .

$\sqrt{150}$

Rewrite $150$ as $5^{2} \cdot 6$ .

Factor $25$ out of $150$ .

$\sqrt{25 (6)}$

Rewrite $25$ as $5^{2}$ .

$\sqrt{5^{2} \cdot 6}$

Pull terms out from under the radical.

$5 \sqrt{6}$

The result can be shown in multiple forms.

Exact Form:

$5 \sqrt{6}$

Decimal Form:

$12.24744871 \dots$