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What is area of semicircle?
The area of a semicircle is half of the area of a circle. The area of a circle is pi x radius x radius. So the area of a semicircle is 1/2 x pi x radius x radius or (pi x radius x radius) / 2.
What is the exact circumference of a circle with an area of 121 cm2?
area = π x radius2 → radius =√(area/π) circumference = 2 x π x radius = 2 x π x √(area/π) = 2 x √(area x π) = 2 x √(121 cm2 x π) = 22 √π cm
What is the area of a square whose side is 100cm in lenght?
Area = length x width Area = 100cm x 100cm Area = 10000cm2
How do you calculate the area of a circle?
Radius x 2 x 3.14 = Area * * * * * That is the formula for the circumference! The area = pi*radius2
How do you find area of piston?
radius squared x 3.14 = area diameter squared x 3.14 / 4 = area
How many square meters is 12meters x 5meters?
12mtr. x 5mtr. = 60 sq. mtr.
What is the square meter of a room measuring 10meters by 5meters?
Just multiply length x width.
What is this in scientific notation The diameter of a bacterial Spiral is 0.000015 meter?
The diameter of a bacterial spiral is 1.5 x 10-5meters.
How many 5 cm by 20 cm tiles would it take to cover a 2 meters by 5meters?
1 square meter = 10,000 sq cm To cover 50,000 square centimeters to 5 meters square tiles are used. 5 x 20 = 100 area of ​​a tile 50000/100 = 500 tiles
What is area of semicircle?
The area of a semicircle is half of the area of a circle. The area of a circle is pi x radius x radius. So the area of a semicircle is 1/2 x pi x radius x radius or (pi x radius x radius) / 2.
How do you find the area of this shapes?
These are some basic formula's;The area of a Triangle:base x height divided by 2.The area of a Square:base x height.The area of a Rectangle:base x height.The area of a Parallelogram:base x height.The area of a Trapezoid:(a + b) divided by 2 x h.The area of a Circle:3.142 x radios.
What is the exact circumference of a circle with an area of 121 cm2?
area = π x radius2 → radius =√(area/π) circumference = 2 x π x radius = 2 x π x √(area/π) = 2 x √(area x π) = 2 x √(121 cm2 x π) = 22 √π cm
What is the circumference of a circle that has a square area of 32?
I assume you mean the circle's area is 32 square units: area = π x radius2 ⇒ radius = √(area ÷ π) circumference = 2 x π x radius = 2 x π x √(area ÷ π) = 2 x √(area x π) ⇒ circumference =2 x √(32 x π) ~= 20 units.
How does the dimensions of a cylinder help you to find its surface area?
Total Surface Area of Cylinder = 2 x pi x radius x (radius + height)Surface area of base circle = pi x radius x radiusSurface area of curved part = 2 x pi x radius x heightHence, total surface area = (2 x area of base circle) + (area of curved part)= (2 x pi x radius x radius) + (2 x pi x radius x height)= 2 x pi x radius x (radius + height)
What is the area of a rectangle with a perimeter of 28cm?
You can't tell. The perimeter doesn't tell you the area. There are an infinite number of rectangles that all have the same perimeter but different areas. Here are a few that all have perimeters of 28 cm: 1 x 13 . . . . . Area = 13 2 x 12 . . . . . Area = 24 3 x 11 . . . . . Area = 33 4 x 10 . . . . . Area = 40 5 x 9 . . . . . Area = 45 6 x 8 . . . . . Area = 48 7 x 7 . . . . . Area = 49
What is the steps of finding the surface area of a cylinder?
Base Area = pi x radius x radius Curved Surface Area = 2 x pi x radius x height Total Surface Area = 2 x pi x radius x (radius + height)
How do you get the circumference of a circle knowing the area?
area = π x radius2 ⇒ radius = √(area ÷ π) circumference = 2π x radius ⇒ circumference = 2π x √(area ÷ π) ⇒ circumference = √(4π2 x area ÷ π) ⇒ circumference = √(4π x area) So knowing the area, the circumference can be calculated by taking the square root of the area multiplied by 4 times π Example: What is the circumference of a circle with area 78.54cm2 Circumference = √(4π x area) = √(4π x 78.54cm2) ~= 31.42cm
