math help?? geometry :]]?
1. lucinda wants to build a square sandbox, but has no way of measuring angles. explain how she can make sure that the sandbox is square by only measuring length.
a.arrange 4 equal-length sides so the diagonals bisect eachother
b. arrange 4 equal-length sides so that the diagonals are equal lengths also
c. make each diagonal the same length as four equal-length sides.
d. not possible, lucinda has to be able to measure a right angle
2. which description does not guarantee that a quadrilateral is a parallelogram?
a. a quadrilateral with both pairs of opposite sides congruent
b. a quadrilateral with the diagonals bisecting eachother
c. a quadrilateral with consecutive angles supplementary
d. quadrilateral with 2 opposite sides parallel
thanks:]]