that is the area of a circle with a diameter of 10 millimeters? Estimate the area to the tenths place using 3 14 for m (1 point)
The area of a circle can be calculated using the formula A = πr², where A is the area and r is the radius of the circle.
Given that the diameter of the circle is 10 millimeters, we can find the radius by dividing the diameter by 2.
Radius = Diameter / 2 = 10 mm / 2 = 5 mm
Now, we can substitute the radius into the formula to find the area:
A = πr² = 3.14 * (5 mm)² ≈ 3.14 * 25 ≈ 78.5 mm²
Since the question asks for the area to the tenths place, we round the area to one decimal place:
Area ≈ 78.5 mm² (rounded to the tenths place)
To calculate the area of a circle, we use the formula A = πr^2, where A is the area and r is the radius.
In this case, we are given the diameter, which is 10 millimeters. The radius is half the diameter, so we can find the radius (r) by dividing the diameter by 2:
r = 10 mm / 2
r = 5 mm
We are also given that π is approximately equal to 3.14.
Now we can substitute the values into the formula to calculate the approximate area (A):
A = 3.14 * (5 mm)^2
A = 3.14 * 25 mm^2
A ≈ 78.5 mm^2
Therefore, the approximate area of a circle with a diameter of 10 millimeters is 78.5 square millimeters.
To find the area of a circle, you can use the formula A = πr², where "A" represents the area and "r" is the radius of the circle. In this case, you are given the diameter of the circle, which is 10 millimeters.
The radius can be determined by dividing the diameter by 2, as the radius is always half the value of the diameter. So, in this case, the radius would be 10 mm / 2 = 5 mm.
Now, substitute the value of the radius (5 mm) into the formula: A = 3.14 * (5 mm)².
Simplifying this equation, you calculate the area: A = 3.14 * 25 mm².
Multiplying 3.14 by 25, you get 78.5 mm².
To estimate the area to the tenths place, you should round the answer. Looking at the digit in the tenths place, which is 8, and using the rounding rule of rounding up if the digit is 5 or greater, the area would be estimated as 78.5 mm².