ALEKS Math Answer Key - californiatomorrow Ans: The distance across the circle through the center of the circle. The diameter is twice the radius. Q. Chord Ans: The distance from one point on the circle to another point on the circle. Q. Sector Ans: The part of a circle that looks like a piece of pie. A sector is bounded by 2 radii and an arc of the circle. Q. Arc Area of Parallelograms Worksheets An enormous range of area of parallelograms worksheets for grade 5 through grade 8 have been included here. Navigate through these 40+ worksheets on calculating the area using the formula with the base and height measures expressed as integers, fractions or decimals, area problems involving unit conversion, finding the missing dimensions and much more.