46 Radiusi 6 cm bo'lgan doira yuzini toping.

Doira yuzining formulasi:

\( A = \pi r^2 \),

bu yerda \( A \) — doira yuzi, \( \pi \) — son, \( r \) — radius.

Berilgan:

• Radius \( r = 6 \) sm.

Hisoblash:

\( A = \pi \cdot (6 \text{ sm})^2 \)

\( A = \pi \cdot 36 \text{ sm}^2 \)

\( A = 36\pi \text{ sm}^2 \)

Ответ: Doira yuzi \( 36\pi \text{ sm}^2 \).