a cow is tied with a rope in the centre of a rectangular lawn with length 10 M and breadth 20 m the length of the Rope is 7 M find the following .
(a)the area of the cow Can graze. (b) The ungrazed area of Lawn.
Answers
HERE OS UR ANSWER DEAR,
Area of the field = l*b = 10*20 = 200m^2
Area where the the cow graze is a sector having central angle 90• [coz ABCD is a rectangle]
Area of sector =
Theta/360• * pi r^2
90/360 * 22/7 * 7*7
1/4* 22 * 7 = 39.5 m^2
Area other than the grazing land= total area - grazing area
=> 200 - 39.5
=160.5 m^2
Hope this helps you
Please mark it as the brainliest......
Heya....
Here's your answer......
Area of the field in which the cow can graze
= πr²/4
= π(7)²/4
= 49π/4
= 12.25π
= 12.25 ×22/7
= 38.5 m²
Area of rectangular field
= l × b
= 10 × 20
= 200 m²
Area of the field in which the cow cannot graze
= Area of rectangular field - Area of the field in which the cow can graze
= 200 m² - 38.5 m²
= 161.5 m².
Thanks...!!!
XD
Sorry baby 'wink'