What is the shaded area of the figure?

Step-by-step explanation:

The idea here is to find the area of the circle and then subtract from it the area of the triangle. That will give you the area of what's left in the circle (the shaded part). The area of a circle is:

so

  where 12.4 is the radius.

rounded to the nearest tenth. I used 3.14 for pi.

Now for the area of the triangle. The formula is

where h is the height of 12.4 and the base is the diameter which is 12.4 * 2 = 24.8

so

Now subtract the triangle's area from the circle's area:

482.81 - 153.76 = 329.05 mm²

no

step-by-step explanation:

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: