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How do you find the area of a semi circle or quarter circle when pi is twenty two sevenths and please include an example for both semi circle AND quarter circle?
Wiki User
∙ 11y ago
The area of a circle is pi*r2, where r is the radius. In this case, 22/7 will be used for pi.
Area of a semicircle:
A semicircle is half of a circle, so the area will be half of a circle: A = (1/2)*pi*r2
Example: Find the area of a semicircle with a radius of 10 meters.
A = (1/2)*(22/7)*(10)2 = (1/2)*(22/7)*(100) = 1100/7 or about 157.14 square meters
Area of a quarter circle:
A quarter circle is a forth of a circle, so the area will be A = (1/4)*(pi)*r2
Example: Find the area of a quarter circle with a diameter of 4 inches:
(Notice that the diameter is given, so the radius in this case is 2 inches:)
A = (1/2)*(22/7)*(22) = (1/2)*(22/7)*4 = 44/7 or about 6.286 square inches.
Wiki User
∙ 11y ago
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If you had a fraction pieces of sevenths do you think you could make half a circle using only sevenths why or why not?
Yes. If you had 3.5 sevenths, that is exactly a half.
What is the measure of the central angle of a quarter of a circle?
A full circle is 360o, so a quarter, (one fourth) of a circle is 90o.
If you have the distance of a quarter of a circle how do you find the radius?
Circumference = (4) x (a quarter of a circle) = (pi) x (the diameter)Diameter = (4 x quarter-circle) divided by (pi)Radius = 1/2 the diameter = (2 x quarter-circle) divided by (pi)
What is a quarterof a circle called?
A quarter of a circle is called a Quadrant.
If there is half a circle a quarter circle and an eighth of a circle how much more of the circle is needed to make it whole?
Half circle plus quarter circle is equal to three-fourths of a circle. Three-fourths of a circle plus one eighth of a circle is seven-eighths. You still need one more eighth to complete the circle.
If you had a fraction pieces of sevenths do you think you could make half a circle using only sevenths why or why not?
Yes. If you had 3.5 sevenths, that is exactly a half.
Can you make half a circle using only sevenths?
no
What is an example sentence that uses the word quarter?
He ate a quarter of the pie.I had three dime and a quarter.The surgeon marked a quarter-sized circle on the patient's skin.
What are the five labels of a circle?
First quarter. Second quarter. Third quarter. Fourth quarter. Circle center.
A quarter of a circle plus an eighth of a circle is what percent of a circle?
A quarter of a circle plus an eighth of a circle is what percent of a circle?
What is the name of quarter of a circle?
A quarter of a circle is a turn of 90 degrees'
How many degrees are in a quarter circle?
AnswerIt's 90*A full circle is 360*, and if you divide that by 4 (quarter) you get 90 Degrees.There are 90 degrees in a quarter of a circle.
What is the measure of the central angle of a quarter of a circle?
A full circle is 360o, so a quarter, (one fourth) of a circle is 90o.
What is the 4 parts of a circle?
Quarter circle
How would you circle one quarter?
in a circle
A quarter of a circle plus an eight of a circle is what percent of a circle?
A quarter of a circle is 2/8 of a circle. Add to that an eighth (1/8) of a circle (not eight) and this equals 3/8 of a circle. This equates to 37.5 % of a circle.
If you have the distance of a quarter of a circle how do you find the radius?
Circumference = (4) x (a quarter of a circle) = (pi) x (the diameter)Diameter = (4 x quarter-circle) divided by (pi)Radius = 1/2 the diameter = (2 x quarter-circle) divided by (pi)
