The diagonals of a square are . A. Never congruent
B. Parallel
C. Perpendicular
D. Sometimes Equal

Plz ( true - false) all triangles have interior angles whose measure sum to 90.

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright

What is the value of the discrimination for the quadratic equation 0=×2+2+×2