answersLogoWhite

0


Best Answer

If one angle of a p/gram is 90o, the other three MUST also be 90o.

(In a p/gram each pair of adjacent angles total 180o)

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: To make sure a parralelogram is a rectangle how many angles need to be 90?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

How many right angles does a parralelogram have?

If it has any, it's a rectangle (or in some instances, a square)


How many right angles are there in one rectangle?

There are four right angles in a rectangle.


How many angles make up a rectangle?

5/6 + 3/4=


How do you make sure that a given parallelogram is a rectangle at least how many of its angles must measure 90?

A rectangle has 4 interior angles each measuring 90 degrees


How many acute angle are in a rectangle?

There are no acute angles in a rectangle which has 4 equal interior right angles


How many does rectangle have angles?

A rectangle has 4 equal right angles of 90 degrees.


How many number of right angles does a rectangle have?

a rectangle has 4 right angles.


How many tight angles in a rectangle?

There are 4 right angles in a rectangle at each of its 4 corners


How many right angles are there in a rectangle?

There are 4 right angles in a rectangle, located at each corner.


How many angles do a rectangle do t have?

The 4 interior angles of a rectangle add up to 360 degrees


How many polygons can you make with four right angles?

A square and a rectangle are two of them because they both have 4 interior right angles


How many angles of a rectangles must be 90 degrees to make surte its a parallelogram?

If it is a rectangle, then all its angles are 90 degrees and it is a parallelogram!