Question

(iv)
Find the perimeter of a sector of a circle if its measure is 90° and radius
is 7 cm
(A) 44 cm(B) 25 cm(C) 36 cm(D) 56 cm​

Answer 1

Answer:

(B) 25 cm

Step-by-step explanation:

$Perimeter of quadrant =(\frac{1}{4}*2*\frac{22}{7} *r) +(r+r)\\=(\frac{1}{4}*2*\frac{22}{7} *7) +(7+7)\\1=(\frac{1}{2}*22) +(7+7)\\=(11) +(14)\\=25cms$