Answer:
13. 169π ft²
16. 34π mm
17. 12π in
18. 441π m²
Step-by-step explanation:
Circumference of a circle is calculated as follows:
C = 2π*r
Area of a circle is calculated as follows:
A = π*r²
where <em>r</em> is the radius of the circle
13. circumference of the circle: 26π ft
Then, its radius is:
26π = 2π*r
r = 26π/(2π) = 13 ft
A = π*13² = 169π ft²
16. area of the circle: 289π mm²
Then, its radius is:
289π = π*r²
r = √289
r = 17 mm
C = 2π*17 = 34π mm
17. area of the circle: 113.1 in²
Then, its radius is:
113.1 = π*r²
r = √(113.1/π)
r = 6 in
C = 2π*6 = 12π in
18. circumference of the circle: 131.95 m
Then, its radius is:
131.95 = 2π*r
r = 131.95/(2π)
r = 21 m
A = π*21² = 441π m²
Answer:
hope it helped have a nice day
Answer:
17 R 25
Step-by-step explanation:
long division. 17(15) is 510. 535-510 is 25, which is the remainder.
Answer:
boxes
Step-by-step explanation:
Given that pens received from the parents' society boxes.
Pens received from the Student Society boxes.
Pens received as gift boxes boxes.
So, the total number of boxes of pens received boxes
Hence, the total number of boxes of pens received boxes.