(30 points for all)
1. all parallelograms are rectangles. true or false
2. all rectangles are quadrilaterals. true or false
3. all rectangles are rhombuses. true or false

(1) Sometimes, only if the parallelogram is also a rhombus. 13. A rectangle is a square. ... A square has opposite angles congruent. o Always, all parallelograms have opposite sides congruent. 16.

(2) Some rectangles may be squares, but not all rectangles have four congruent sides. All squares are rectangles however. The correct answer is that all trapezoids are quadrilaterals.

(3) Every square is a rhombus, and a rhombus can be a square, if all its angles are 90 degrees. Thus, a rhombus can be a rectangle (if the angles of the rhombus are all 90 degrees), and a rectangle can be a rhombus (if the sides of the rectangle are all equal length).

Hey hope this helps you out ! <3 <3 <3

answer: hey there,

the answer you are looking for is a..

hope this you!

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7