Question

solve 3✓21cm solve this to get 100 points​

Answer 1

Answer:

Given r=21cm

Angle made by minute hand in 1 minute = 603600=60

Therefore, angle made in 5 minutes = 60×5=300

Area of the sector=360∘θ×π×r2

Here θ=30∘

Hence, area swept in 5 minutes = 3600300×722×(21)2

                                                      = 121×722×21

                                                      = 5.5 cm2

Answer 2

Answer:

Area of the sector=360∘θ×π×r2

Here θ=30∘

Hence, area swept in 5 minutes = 3600300×722×(21)2

                                                     = 121×722×21

                                                     = 5.5 cm2

Step-by-step explanation: