Math, asked by yogo6698, 1 year ago

Find the perimeter of a sector with an angle 45 of a circle of radius 7cm

Answers

Answered by devadakshan
86
LENGTH OF ARC = Θ/360 × 2πr
                              = 45 / 360 × 2 × 22/7 × 7
                              = 8×44
                              = 352 cm


PERIMETER OF SECTOR = 2 RADIUS + LENGTH OF ARC
                                            = 2 × 7 + 352
                                            = 14 + 352
                                            = 366 cm

Perimeter of sector = 366 cm
                      


Answered by niyati2dinesh
48

Answer:

Step-by-step explanation:

Theta/360 × 2πr

45/360×2×22/7×7 = 11/2=5.5

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