∆LMN is a right angled triangle with ∠L=90°. A circle is inscribed in it. The length of the sides containing the right angle are 6 cm and 8 cm. Find the radius of the circle.

$∆ L M N$ is a right angled triangle with $∠ L = 90^{°}$ . A circle is inscribed in it. The length of the sides containing the right angle are 6 cm and 8 cm. Find the radius of the circle.

Match the items on the right to the items on the left.