ACT PREP ;), ACT Prep Exam well completed and answered
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Course
ACT
Institution
ACT
ACT PREP ;), ACT Prep Exam well completed and answered
Circumference of a circle Correct Answer: 2πr
Area of a triangle Correct Answer: A=(base x height)/2
Area of a trapezoid Correct Answer: A=(base 1 + base 2)/2 x height
phythagorean theorem Correct Answer: a^2 + b^2 = c^2
are...
sector Correct Answer: fraction of area of circle
x/aπ = 45/360
x/aπ = 1/8
8x = aπ
x=a/8 π
arc Correct Answer: fraction of circumference
x/aπ = 45/360
x/aπ = 1/8
8x = aπ
x = 3/4 π
area of a parallelogram Correct Answer: A=bh
Volume of a sphere Correct Answer: 4/3πr³
equation of a circle Correct Answer: (x-h)²+(y-k)²=r²
(h,k) = center
radians to degrees Correct Answer: multiply by 180/π
eg: 3π/2 x 180/π=270 degrees
degrees to radians Correct Answer: multiply by π/180
270 x π/180=3π/2
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