Answer:
QUESTION:
what is the area of a circle whose diameter of 33 cm?
ANSWER:
854.865 cm²
FORMULA:
A = πr²
MEANINGS:
A means area
π means pi or 3.14 (rounded)
r means radius
HOW TO CHANGE THE DIAMETER INTO RADIUS TO FIND THE AREA OF A CIRCLE?:
just divide the diameter by two to get the radius
you can use the formula r = d/2 to find the radius
FIRST LET'S SOLVE FOR THE RADIUS BECAUSE THE GIVEN IS DIAMETER.
given: diameter of 33 cm
solve for the radius
r = d/2
r = 33/2 or 33 ÷ 2
r = 16.5 cm
NOW LET'S SOLVE FOR THE AREA OF THE CIRCLE:
A = πr²
A = (3.14)(16.5 cm)²
A = (3.14)(272.25 cm²)
A = 854.865 cm²
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