Answer:
X=81
Step-by-step explanation:
X-3=84
X=84-3=>81
Answer:
3.14
Step-by-step explanation:
To find the area of a circle with the radius, square the radius, or multiply it by itself. Then, multiply the squared radius by pi, or 3.14, to get the area. To find the area with the diameter, simply divide the diameter by 2, plug it into the radius formula, and solve as before.
Answer:
4 1/2
Step-by-step explanation:
50 5/8 divided by 11 1/4 equals 4 180/360
4 180/360 simplified equals to 4 90/180= 4 1/2
Answer:
7854 square centimeters
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
A = pi ( 50)^2
A = 2500 pi
Let pi be approximated by 3.14
A = 2500 * 3.14
A =7850 cm^2