Question

Which property of rectangles is used to write the equation (x + 7) + (2x – 1) = 90 and solve for x? The opposite sides of a rectangle are parallel.
The opposite angles of a rectangle are equal.
The adjacent angles of a rectangle are supplementary.
The diagonal of a rectangle divides the angle at the vertex into two complementary angles.

Answer 1

Any ideas?

Answer 2

@skullpatrol ;-)

Answer 3

think about it... 90 sounds similar to every angle of a rectangle?

Answer 4

I DONT UNDERSTAND :(

Answer 5

This is a rectangle, right?

Answer 6

i need help

Answer 7

YES