180 > x > 90: obtuse
180: straight
360 > x > 180: reflex
An isosceles triangle
When the angle = 90 degrees, it is a Right Angle. When the angle is greater than 90 degrees, it is an obtuse angle.
An obtuse angle
An equilateral triangle, which has 3 angles of 60o.
Acute
An isosceles triangle
When the angle = 90 degrees, it is a Right Angle. When the angle is greater than 90 degrees, it is an obtuse angle.
An obtuse triangle
An obtuse angle
An equilateral triangle, which has 3 angles of 60o.
Each base angle is 62.5 degrees
Acute
It is the regular triangle whose exterior angles are greater than the regular heptagon
The 3rd angle is: 180-55-80 = 45 degrees
No. An obtuse angle is just a term to describe an angle greater than 90 degrees and less than 180.
An obtuse triangle has one obtuse angle(an angle greater than 900 ) and remaining two acute angles whose measurement is less than 90 degrees. Foe more details , contact at saqibahmad81@yahoo.com
It is a triangle, one of whose angles is a right angle.