The angles of a semi-circle are on a straight line and angles on a straight line add up to 180 degrees.
You add the area of the square with the area of the semi circle.
First the circle diameter must be given. for example, for a semi circle of diameter 8 centimeters:Step 1: the circumference of the full circle (= pi x Diam). result is: 25.12 cmStep 2: Divide the circumference in half. This is the length of just the curved part of the semi-circle. result: 12.56 cmStep 3: Add the diameter to the result of step 2.Step 4: The result is 12.56 + 8 = 20.56 cm. This is the perimeter of the semi-circle!Note point: There are 360 degrees in a circle, so a quarter of a circle has 90 degrees no matter what size the circle is. Half a circle has 180 degrees.
The angles in a semi-circle add up to 180
There are 360 degrees in a circle.
add the perimeter of the rectangle, minus the side that'c covered by the semi circle. then, find the circumference of the semi circle [diameter x pi, divided by 2] and addd them together
A 1/4 of a circle is 90 degrees 1/8 of a circle is 45 degrees and they both add up to 135 degrees
360
Yes they both add up to 360 degrees
No because they add up to 360 degrees
Because angles around any point add up to 360 degrees and the point is the circle's centre.
A circle has angles which add to 360o.