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Area of a Circle
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AREA: P: times the radius squared →→> A=² 2 Circle radius B (in.). π = A A=4πin ² 2 in. Az 12.4in.²- center> AREA OF A CIRCLE lên m Hin 6cm 2 EXAMPLE ONE: Find the area of a * = A A=Jr² circle with a diameter of 12cm. If d=12, then r=0. The area is *r? 2 A=JbA=367cm, 19 EXAMPLE TWO: If the area of a circle is 20%, what is the radius? and solve for the radius. 201 "Plug in the area 2 20 20x=tr -- A=π 5² => A=25π cm. 2 2 10 r=√20 20=r²² radical: Simplify Use the diagram below for both example 3 and example 4. EXAMPLE THREE: A circle is inscribed in a square. Each side of the square is 10cm ·long. What is the area of the circle? If d=10cm, then r = 5 cm. ax -10cm- EXAMPLE FIVE: Find the diameter of a circle with the area of 36. 2 2 A=πr² A = 36π = πr²² 367 B = 6 6•2=12 2 36= r²r=6 & d = 12 de OUT EXAMPLE FOUR: Find the area of the shaded region. A=10²-25x=100-25T² A≈ 21.46cm² A 8 QUIZZIZ CODES Classwork: 24825874 Homework i 18731026 SE the of SEC the EX Ex EX
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This page talks about how to find the area of a circle.
This page talks about how to find the area of a circle.
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AREA: P: times the radius squared →→> A=² 2 Circle radius B (in.). π = A A=4πin ² 2 in. Az 12.4in.²- center> AREA OF A CIRCLE lên m Hin 6cm 2 EXAMPLE ONE: Find the area of a * = A A=Jr² circle with a diameter of 12cm. If d=12, then r=0. The area is *r? 2 A=JbA=367cm, 19 EXAMPLE TWO: If the area of a circle is 20%, what is the radius? and solve for the radius. 201 "Plug in the area 2 20 20x=tr -- A=π 5² => A=25π cm. 2 2 10 r=√20 20=r²² radical: Simplify Use the diagram below for both example 3 and example 4. EXAMPLE THREE: A circle is inscribed in a square. Each side of the square is 10cm ·long. What is the area of the circle? If d=10cm, then r = 5 cm. ax -10cm- EXAMPLE FIVE: Find the diameter of a circle with the area of 36. 2 2 A=πr² A = 36π = πr²² 367 B = 6 6•2=12 2 36= r²r=6 & d = 12 de OUT EXAMPLE FOUR: Find the area of the shaded region. A=10²-25x=100-25T² A≈ 21.46cm² A 8 QUIZZIZ CODES Classwork: 24825874 Homework i 18731026 SE the of SEC the EX Ex EX
AREA: P: times the radius squared →→> A=² 2 Circle radius B (in.). π = A A=4πin ² 2 in. Az 12.4in.²- center> AREA OF A CIRCLE lên m Hin 6cm 2 EXAMPLE ONE: Find the area of a * = A A=Jr² circle with a diameter of 12cm. If d=12, then r=0. The area is *r? 2 A=JbA=367cm, 19 EXAMPLE TWO: If the area of a circle is 20%, what is the radius? and solve for the radius. 201 "Plug in the area 2 20 20x=tr -- A=π 5² => A=25π cm. 2 2 10 r=√20 20=r²² radical: Simplify Use the diagram below for both example 3 and example 4. EXAMPLE THREE: A circle is inscribed in a square. Each side of the square is 10cm ·long. What is the area of the circle? If d=10cm, then r = 5 cm. ax -10cm- EXAMPLE FIVE: Find the diameter of a circle with the area of 36. 2 2 A=πr² A = 36π = πr²² 367 B = 6 6•2=12 2 36= r²r=6 & d = 12 de OUT EXAMPLE FOUR: Find the area of the shaded region. A=10²-25x=100-25T² A≈ 21.46cm² A 8 QUIZZIZ CODES Classwork: 24825874 Homework i 18731026 SE the of SEC the EX Ex EX
Can't find what you're looking for? Explore other subjects.
Knowunity is the # 1 ranked education app in five European countries
Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.
Still not sure? Look at what your fellow peers are saying...
iOS User
I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D
Stefan S, iOS User
The application is very simple and well designed. So far I have found what I was looking for :D
SuSSan, iOS User