How many acre in 160000 square feet?

How many circles can be drawn through one given point? How many degrees right angle? How do you find the degrees sector of an circle? Ray bd bisects angle abc find the value of x if the measure of angle abd is represented by 7x plus 8 and the measure of angle dbc is represented by 9x-2? What is the area of a rectangle 6cm x 18cm? What is the surface area of a cylinder whose radius is 6 and height is 14? How big is a 0.50ctw diamond? What is the circumference of a 19 inch diameter? How many triangles are pointing up in a equilateral triangle? How big is a 500 m2 lot? 1 kilometer meter? Can you show me what a trapezoid looks like? How many yards are in 210 square feet? What is the sum of the angles of a trapezoid? How large is 5 x 7 cm in inches? Do adjacent angles share a common side? How many sides and angles does a hexagon have? How do you Calculate square feet of a rectangle? What is the cross section of a sphere? If two sides of the triangle is 6 and 5 what is the perimeter of triangle?