Yes it must have at least one (really, it needs two or more). The sum of the interior angles in a pentagon is 540°.
If you had 4 angles @ 90°, then the fifth angle would need to be 180°, which is a straight line, then it would be a rectangle, not a pentagon, so you need at least two angles, greater than 90°.
some objects that has an obtuse angle is a pentagon, laptop and the objects that is greater than 90 degrees
No, a pentagon cannot have 2 obtuse angles, 2 right angles, and 1 acute angle. The sum of interior angles in a pentagon is always 540 degrees. If a pentagon has 2 obtuse angles (each measuring more than 90 degrees) and 2 right angles (each measuring 90 degrees), the total would already exceed 540 degrees, leaving no room for an acute angle.
A obtuse angle is called an obtuse angle because if obtuse means bigger in degrees and a right angle is 90 degrees than a obtuse angle must be over 90 degrees.
110 degrees creates an obtuse angle.
Well, honey, if you're talking about an angle that measures 170 degrees, you're looking at an obtuse angle. It's bigger than a right angle but smaller than a straight angle. So, grab your protractor and get measuring!
A pentagon has an obtuse angle
obtuse angle
120 degrees is obtuse.
A pentagon.
A regular pentagon has 5 equal sides and 5 equal interior obtuse angles of 108 degrees.
some objects that has an obtuse angle is a pentagon, laptop and the objects that is greater than 90 degrees
Not sure what the question means. A triangle or quadrilateral may but need not contain an obtuse angle. A pentagon or any polygon with more sides must contain at least one obtuse angle.
Pentagon
An irregular pentagon.An irregular pentagon.An irregular pentagon.An irregular pentagon.
Hi A pentagon has 540 degrees and five sides. If it is a regular pentagon, then each angle is 108 degrees. An obtuse angle is greater than 90°. A pentagon can be constructed with 2 obtuse angles and 3 non-obtuse (either acute or right) angles. Example: if it had 3 angles of 90° = 270°. 540° - 270° = 270°, which would be split between 2 angles (each between 90° and 180°).
A pentagon.
Each interior angle of a regular is 108 degrees which is an obtuse angle and each exterior angle is 72 degrees which is an acute angle