Respuesta :

Answer:

[tex]A=0.8836[/tex]

Step-by-step explanation:

Area of circle:

[tex]\pi r^2[/tex]

By using the area of a circle, we can get the area of a semicircle:

[tex]\frac{\pi r^2}{2}[/tex]

Let's convert the mixed fraction to an improper fraction and then a decimal:

[tex]1\frac{1}{2}[/tex] = [tex]\frac{3}{2}[/tex] = [tex]1.5[/tex]

Now, we solved for the diameter, to get the radius, we need to divide the diameter by 2:

[tex]\frac{1.5}{2} =0.75[/tex]

Now we have the radius, so we can plug in our values and find the area:

[tex]\frac{\pi0.75^2}{2} = 0.88357293[/tex]

[tex]A=0.88357293[/tex]

Answer:

0.88 cm²

Step-by-step explanation:

d = 1[tex]\frac{1}{2}[/tex] = [tex]\frac{3}{2}[/tex]

r = [tex]\frac{d}{2}[/tex]

 = [tex]\frac{3}{2*2}[/tex]

 = [tex]\frac{3}{4}[/tex]

Now, area of circle = πr² = π[tex]\frac{3}{4}[/tex]² = π[tex]\frac{9}{16}[/tex]

                                         = 1.767 cm²

Area of the semicircle = [tex]\frac{Area of Circle}{2}[/tex] = [tex]\frac{1.767}{2}[/tex]

                                     = 0.88 cm²