Any and all squares and rectangles. Every one of these two shapes has only right angles. Though some triangles also have right angles.
A right angle triangle
a right triangle
an obtuse angle
A square is a rhombus with right angles so you would need to know one of the angles or an exterior angle or another angle that shares a vertex with the shape.
An obtuse triangle.
a 3 sided shape is a right angle triangle
A right angle triangle
an angle with a acute and right angle
A right angle triangle
to find the area of a parallelogram you must find the right angle of the shape then you multiply it with the base number and then you get your answer
a right angle triangle.
a right triangle
You can find out the degrees of the angles of shape shape by following these instructions. First you line up the bottom line of the protractor onto a side of a shape. The corner of the shape should be on the tiny dotlike thing in the middle of the bottom line of the protractor. Next, you find out if the angle is obtuse (larger than a right angle), acute (smaller than a right angle), or right. If it's obtuse, you know that it's larger than 90 degrees. You should look at the larger number the other line is pointing at. If it's acute, find you the angle by finding out which number the other line is pointing at. If you think it's a right angle, see if the line's pointing at another number. Otherwise, it's a right angle.
an obtuse angle
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a cube
A right angle triangle