If the perimeter of a sector of a circle of radius 6.5 cm is 29 cm, then itd area is__________.?
Trick: Area of a sector = ½ × Radius × (Perimeter − 2 × Radius)
Radius = 6.5 cm
Perimeter = 29 cm
Arc length = 29 − (2 × 6.5) = 16 cm
Area = ½ × 6.5 × 16
= 52 cm²
Answer: 52 cm²