Question

उस वृत्त का क्षेत्रफल कितना है जिसकी परिधि,11 cm भुजा वाले वर्ग के बराबर है ?​

Answer 1

$explanation -$

$given - the circumferenc of the circle is equal to the perimeter of the square.$

So , 2πr = 4a

2×22/7 × r = 4×11

44/7 × r = 44

r/7 = 1

r = 7 cm

$so area of circle$

= πr²

= 22/7 × (7)²

= 22/7 × 49

= 22 × 7

= 154 cm

Answer 2

Answer:

154 cm. sq

Step-by-step explanation:

varg ki bhuja = 11 cm.

varg ka parimap = 11*4 = 44 cm

vritt ki paridhi = 44 cm.

2πr = 44

2*22/7 *r = 44

44/7*r = 44

r = 44/44*7

r = 7 cm.

vritt ki trijya = 7 cm.

vritt ka chetraphal = π*r*r

= 22/7 * 7*7

= 154 cm sq.