Not necessarily. Rectangles are quadrilaterals and have no acute angles.
Yes. Rectangles have four right angles.
Any polygon can contain acute interior angles.
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
Just about any shape that isn't a circle can have two or more acute angles. But with some of them, you need to make them have acute angles.
Not necessarily. Rectangles are quadrilaterals and have no acute angles.
A triangle is the only shape that can have only acute angles inside it.
Yes. Rectangles have four right angles.
A decagon can have acute angles.
Yes. A rectangle is a parallelogram that has right angles instead of acute and oblique angles at the corners. But not all parallelograms are rectangles.
Obtuse angles are no more important than acute or right angles. The commonest tessellation uses squares (or rectangles) and these have right angles - not obtuse.
You can't, it's impossible since rectangles have all right angles.
Any polygon can contain acute interior angles.
An angle that measures 35 degrees is called an acute angle. Acute angles are angles that are less than 90 degrees. They are commonly found in geometric shapes such as triangles and rectangles. In this case, the 35-degree angle would be classified as an acute angle.
A square and a rectangle have opposite equal 90 degree angles. A parallelogram and a rhombus have 2 opposite equal acute angles and 2 opposite equal obtuse angles.
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
Just about any shape that isn't a circle can have two or more acute angles. But with some of them, you need to make them have acute angles.