Answer:
Step-by-step explanation:
2. To find area, you use this equation: A = l*w
Let's input the values we do know to find the width.
96 = 12 * w
Divide both sides by 12 to isolate the w.
8 = w
The width is 8 cm.
3. We need the find the area of the floor to figure out how many square meters they need. to find area, we multiply the length by the width.
3 * 2 = 6
You need 6 sq. m.
4. To find the circumference, use the equation: C = 2 * pi *r
To find the radius, divide the diameter by 2.
3/2 = 1.5
C = 2pi(1.5)
C = 3pi
The circumference is 3pi. This can also be simplified to 9.42 or 9.4
5. To find the amount of square cm. it covers, multiply the length and width.
40 * 35 = 1,400
The surface covers 1,400 sq. cm.
6. To find circumference, use this equation: C = d * pi
Input the values you do know to find the diameter
15.7 = d * pi
divide both sides by pi to isolate d
4.77 = d
The diameter is approximately 4.8 cm.
7. To find area, multiply length by width. Since we know all sides of a square are the same, you can multiply 15 by 15 to get the answer.
15 * 15 = 225
The area is 225 sq. cm.
8. To find area, use this equation: A = l * w
put the values you know into the equation to find the length.
60 = l * 6
divide both sides by 6 to isolate the l
10 = l
The length is 10 cm.
9. To find the area of a square, the equation is: A = s^2
Input the values you know to find the length of a side.
81 = s^2
Find the square root of both sides to isolate the s.
9 = s
The length of one side is 9 cm.
10. To find the area of a circle, use this equation: A = pi * r^2
Input the values you know and solve for r.
201 = pi * r^2
Find the square root of both sides and divide both sides by pi to isolate the r.
7.998 = r
The radius is approximately 8 cm. Multiply this value by 2 to find the length of the diameter.
8 * 2 = 16
The diameter is approximately 16 cm.
