Page 217 - NUMINO_WB_6A

129-P3-1

Area of the Running Track

Find the area of the running track.
3 cm
20 cm
3 cm
40 cm

Step 1. Find the area of the colored part in the middle.
3 cm
20 cm
3 cm
40 cm

Step 2. Find the sum of the areas of the curved parts on both sides of the shape.

Step 3. Find the area of the running track.