a horse is tethered to one corner of a rectangular grassy field 36 m by 20 m with a rope 18 m long. over how much area of the field can it graze?  Pick.
A) 154 cm 2
B) 308 m 2
C) 254 m 2
D) 260 m 2
E) none of these
<gadget id="calculator">18 ** 2</gadget>
<output>324</output>

<gadget id="calculator">324 * pi</gadget>
<output>324*pi = around 1_017.87602</output>

<gadget id="calculator">(324*pi) / 4</gadget>
<output>81*pi = around 254.469005</output>

<result>C</result>
a horse is tethered to one corner of a rectangular grassy field 36 m by 20 m with a rope 18 m long. over how much area of the field can it graze?
divide(multiply(power(18, const_2), const_pi), const_4)
"area of the shaded portion = 1 ⁄ 4 × π × ( 18 ) 2 = 254 m 2 answer c"