a horse is tethered to one corner of a rectangular grassy field 36 m by 20 m with a rope 12 m long. over how much area of the field can it graze? Options
A) 154 cm 2
B) 113 m 2
C) 123 m 2
D) 115 m 2
E) none of these
<gadget id="calculator">12 ** 2</gadget>
<output>144</output>

<gadget id="calculator">144 * pi</gadget>
<output>144*pi = around 452.389342</output>

<gadget id="calculator">(144*pi) / 4</gadget>
<output>36*pi = around 113.097336</output>

<result>B</result>
a horse is tethered to one corner of a rectangular grassy field 36 m by 20 m with a rope 12 m long. over how much area of the field can it graze?
divide(multiply(power(12, const_2), const_pi), const_4)
"area of the shaded portion = 1 ⁄ 4 × π × ( 12 ) 2 = 113 m 2 answer b"