Skip to content / Đến nội dung
ThichHocToan.com

VTMO 2019 — Grade 6 — semifinal Question 12

VTMO · VTMO 2019 — Grade 6 — semifinal

Question 12

The pictured shape is formed from four semicircles of radius $3 \,\mathrm{cm}$. Find its area, taking $\pi = \frac{22}{7}$.

Question illustration
  1. $9 \,\mathrm{cm}^{2}$
  2. $24 \,\mathrm{cm}^{2}$
  3. $36 \,\mathrm{cm}^{2}$
  4. $27 \,\mathrm{cm}^{2}$
  5. $18 \,\mathrm{cm}^{2}$