Hagrid
contestada

A rectangle is placed around a semicircle as shown below. The length of the rectangle is
4yd
.
Find the area of the shaded region. Use the value
3.14
for
π
, and do not round your answer. Be sure to include the correct unit in your answer.

A rectangle is placed around a semicircle as shown below The length of the rectangle is 4yd Find the area of the shaded region Use the value 314 for π and do no class=

Respuesta :

baedenc
4yd x 2yd =Area of square                     3.14yd = area of semicircle 
         8yd =

Area of shaded section is 8yd - 3.14yd
this gives an area of 4.86yd  

4.86yd  

apologiabiology
assuming that the height of the rectangle is 2 (1/2 of 4)

radius=4/2=2

shaded=rectangle-semicircle
shaded=2*4-(1/2)pi2²
shaded=8-2pi
aprox
shaded=1.72

answer is 1.72yd²