Four horses are tethered at 4 corners

[mav800rick]

A very simple question. Just wanted to confirm the answer.

Four horses are tethered at 4 corners of a square field of side 70 ft so that they just cannot reach one another. The area left ungrazed by the horses is:
A. 1050 sq.ft
B. 3850 sq. ft
C. 950 sq. ft
D. 1075 sq.ft
E. 1200 sq. ft

[netigen]

Area of sq - Area of circle with radius 35

70 x 70 - pi x 35 x 35 ~ 1054 (assuming pi = 3.14)

that gives us ans A

[mav800rick]

Even I got 1050, but the answer given from where I saw was 1075. Was pretty sure it was wrong.

[wizardofwashington]

Even I got 1050, but the answer given from where I saw was 1075. Was pretty sure it was wrong.

1050 seems the right answer. I check this question randomly using google and lucked out big time. Check this link below.

https://www.ascenteducation.com/india-mb ... 0503.shtml