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Here's a list of shapes that need a right angle:

square

rectangle

right triangle

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16y ago

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Related Questions

What must be true for an angle to be a right angle?

It has to be 90 degrees to be a right angle.


Is it true that an obtuse triangle can have a right angle?

In Euclidean geometry, a triangle must be one of these: acute, obtuse, or right. Maybe there is a non-Euclideangeometry for which some obtuse triangles can contain a right angle, but it doesn't happen in Euclidean geometry.


If an angle is not acute straight or obtuse it must be what?

It could be a right angle or a reflex angle


What must true statement about a 30 angle and 60 angle triangle?

That it must be a right angle triangle because the 3rd angle must be 90 degrees


What must you construct before you trisect a right angle?

An equilateral triangle on on of the arms of the right angle.


The fiqure must have at least one right angle angle?

triangle


What is a shape that must be a 90 degrees angle?

A right angle triangle must have a 90 degree angle and two acute angles.


Why not left angle triangle but right angle triangle?

Because the phrase 'right angle' indicates 90 degrees whereas there is no such angle as a 'left angle'


What shape has 2 right angles and 1acute angle and 2 obtuse angles?

A shape that has 2 right angles, 1 acute angle, and 2 obtuse angles is a quadrilateral. One possible example is a right trapezoid, where two angles are right angles, one angle is acute, and the last angle is obtuse. This combination of angles can create various quadrilateral shapes, but they must maintain the sum of interior angles equal to 360 degrees.


What shapes do not have any right angles or angles greater than a right angle?

Acute triangles. They can have three angles, all less than 90 degrees (total is 180 degrees).Shapes with more than three sides must have angles of 90 degrees or more because the total of their angles must be 360 degrees (quadrilaterals) or more.


What kind of aNGLE DOES A RIGHT TRIANGLE HAVE?

A right-angle triangle must have one corner of 90 degrees.


What angles make a right triangle?

One angle must be 90o, which is the right angle. The sum of the other two angles must equal 90o.