ASAP!!! Estimate the area of the circle and use 22/7 for pie. The circle shows line all the way across measuring 28cm. Find area
. Can someone please help explain and show your work. TYSM
2 answers:
R = 14ft , D = 3 1/3 yd
A = (pi) (r^2)
A = (22/7)(14)^2
A = 616ft^2 / 616 square feet
Kinda hard for me to explain online.. Hopefully this makes sense.
Area of circle:
A = πr²
π = 22/7, or 3.14 (simplified)
'a line all the way across' means a diameter, which is 28 cm. To find the radius, divide the diameter by 2:
28/2 = 14
Plug in 14 (the radius) to r inside the equation:
A = πr²
A = π(14)²
14² = 196
A = π(196)
π = 3.14
A = 196(3.14)
A = 615.44
615.44cm² is the area of the circle
hope this helps
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