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If the radius of a circle with an area of 120 mm squared is multiplied by 3 what is the area of the new circle?
In ratios, the ratios of areas is the square of the ratio of sides.
Consider the original circle and the new larger circle formed by multiplying its radius (length) by 3:
The circles have lengths in the ratio 1 : 3
→ the circle have areas in the ratio 1² : 3² = 1 : 9
→ The larger circle's area is 9 × 120 mm² = 1080 mm²
What else can I help you with?
How do you find the formula of area of a circle?
pi multiplied by the radius squared
How is pi in relation to a circle?
Pi is related to the area and the circumference of the circle. The area is Pi multiplied by the radius of the circle squared and the circumference is Pi times the diameter of the circle. if you're wondering how it works, pi is the area of a circle with radius of 1 (unit), and the circumference of a circle with a radius of ½ (unit).
What happens to the area of the circle when the diameter is doubled?
As the area of a circle A equals pi times the radius squared, and doubling the diameter means multiplying the radius by four, the area is multiplied by 16 when you double the diameter.
What is area of s circle with 1 inch radius?
The area of Circle S can be found by using the area formula for circles. The area of a circle is pi times the radius squared. So, the area of Circle S with a 1 inch radius is Pi inches squared.
What is formula for the area of a circle?
the formula for the area of a circle is 3.14 x radius squared
How do you find out an area of a circle?
pi multiplied by the radius squared
How do you find the formula of area of a circle?
pi multiplied by the radius squared
In the formula for the area of a circle what gets multiplied by 3.14?
The radius squared. The radius is half of the diameter
What is the equation to get the area of a circle if you have the radius?
The area of a circle is given by: pi multiplied by the square of the radius. So if the radius is 15, the area is 225pi (225 is 15 squared)
How can you find the surface area of cicular end?
The area of a circle is 3.141... multiplied by the radius squared.
Find the area 2.35m?
The area of a circle is pi multiplied by radius squared. Thus, if the radius is 2.35m, the area is 17.3 square meters.
In the formula for the area of a circle what's gets multiplied?
Algebraically, it is ; - A = pi r^(2) In words, it is ' Area equals 'pi' multiplied to the radius squared'. NB 'pi' is a constant at 3.141592..... usually shortened to '3.14'. The radius (r) is the distance from the circle centre to the circumference/edge. 'radius squared' is r^(2) , that is 'r' multiplied to 'r' ; r X r = r^(2) . NNB The circumference of a circle is ; C = 2 pi r Note the power/exponent of '2' becomes a coefficient. In words ' Circumference equals two multiplied to 'pi' multiplied to the radius. (NOT radius squared).
How you get the area of a circle?
A= Area of the circle¶= Pi (About 3.14)r= Radius squared (Radius times radius)3.14 * Radius squared
What is the required piece of information tho find the area of a circle?
The only piece of information required to find the area of a circle is the radius of the circle. Once you know the radius of the circle, the area is simply the radius squared multiplied by pi (approximately 3.14).
How do you ESTIMATE the area of a circle if you know its radius?
Area of a circle = pi multiplied by (radius squared)Pi is approximately 3.141 so do r x r x 3.141
What is the radius of a circle that has an area of 64ft squared?
The radius of a circle that has an area of 64ft squared is: 4.514 feet.
What is the area of circle with a radius of 35?
Area of a circle = pi*radius squared
