Area of a regular polygon

Find the area of a regular triangle with a side length of 10 km.

• 43.3 km²
• 47.2 km²
• 50.3 km²
• 120 km²

Find the area of a regular hexagon with a side length of 9 cm.

• 210.4 cm²
• 230.1 cm²
• 237.0 cm²
• 260 cm²

Find the area of a regular hexagon with a perimeter of 48 yards.

• 137.5 yards²
• 145.2 yards²
• 152.9 yards²
• 166.3 yards²

Find the area.

• A

• B

• C

• D