Quadrilateral ABCD has coordinates A (3, -5), B (5, -2), C (10, -4), D (8, -7). Quadrilateral ABCD is a •rectangle, because opposite sides are congruent and adjacent sides are perpendicular

•square, because all four sides are congruent and adjacent sides are perpendicular

• parallelogram, because opposite sides are congruent and adjacent sides are not perpendicular

•rhombus, because all four sides are congruent and adjacent sides are not perpendicular

Step-by-step explanation:

Quadrilateral ABCD is parallelogram, because opposite sides are congruent and adjacent sides are not perpendicular.

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m