A semicircle.
A semicircle.
A semicircle.
A semicircle.
A semicircle.
The interior angle and central angle are supplementary, that is they always add up to 180 degrees, while the exterior angle and the central angle will always be the same.
angle between 90 and 180 degrees is A obtuse angle
An angle that is between 90 degrees and 180 degrees is called an obtuse angle. Ex. : 175 degrees, 140 degrees.
No. An obtuse angle is between 90 degrees to 180 degrees/ No. An obtuse angle is between 90 degrees to 180 degrees/
87 degrees
If the arc is circular, such a figure is a semicircle or half circle.
The relation between the arc of length and the central angle is that the arc of length divided by one of the sides is the central angle in radians. If the arc is a full circle, then the central angle is 2pi radians or 360 degrees.
Any angle between 0 and 360 degrees.Any angle between 0 and 360 degrees.Any angle between 0 and 360 degrees.Any angle between 0 and 360 degrees.
An angle of between 90 degrees and 180 degrees is called an obtuse angle, an angle that is exactly 180 degrees is called a straight angle (because it creates a straight line), and an angle of more then 180 degrees is called a reflex angle.
The interior angle and central angle are supplementary, that is they always add up to 180 degrees, while the exterior angle and the central angle will always be the same.
No. A right angle is defined to be 90 degrees.
major arc! (Apex)
A sector is the area enclosed by two radii of a circle and their intercepted arc, and the angle that is formed by these radii, is called a central angle. A central angle is measured by its intercepted arc. It has the same number of degrees as the arc it intercepts. For example, a central angle which is a right angle intercepts a 90 degrees arc; a 30 degrees central angle intercepts a 30 degrees arc, and a central angle which is a straight angle intercepts a semicircle of 180 degrees. Whereas, an inscribed angle is an angle whose vertex is on the circle and whose sides are chords. An inscribed angle is also measured by its intercepted arc. But, it has one half of the number of degrees of the arc it intercepts. For example, an inscribed angle which is a right angle intercepts a 180 degrees arc. So, we can say that an angle inscribed in a semicircle is a right angle; a 30 degrees inscribed angle intercepts a 60 degrees arc. In the same or congruent circles, congruent inscribed angles have congruent intercepted arcs.
a central angle does NOT have to equal 90 degrees
The central angle of a n-sided regular polygon = 360 degrees / n. Hence, the central angle of a 15-sided regular polygon = 360 degrees / 15 = 24 degrees ============================
89.52 degrees.
No. An obtuse angle is defined as being greater than 90 degrees, but less that 180 degrees.