Question

In a square shaped farm with sides 56m each, four cows are tethered at 4 corners of a square farm so that they can just reach one another. calculate the are not grazed by the cows.

Answer 1

$\huge{\textbf{\underline{Answer:-}}}$

Area of square = area of 4 sectors 

The remained ungrazed cows will be,

Radius (r) = 70/2 = 35 

 (side)² r - 0/360 × πr²

(70)² - 4 × 90/360 × 35 × 35

• 7 and 35 cancels and 35 becomes into 5 and 7 becomes 1
• 0 and 0 cancels 
• 9 and 36 cancels and 9 becomes 1 and 36 as 4
• 4 and 4 cancels and becomes 1

So, the remaining numbers are 5 and 35.

So, now multiply 35 and 5.

= (35 × 5)

= 4990 - 3850 = 1050cm²

Hence, the answer is 1050cm²

________________________