to construct an angle of 20 degrees all you have to do is to trisect an angle of 60degrees
90 - 20 = 70 degrees.
It is an 8 sided octagon whose 8 interior angle add up to 1080 degrees and has 20 diagonals
1
Reflex angle is "A Reflex Angle is more than 180° but less than 360°" by definition; however, if the "20°" you are talking about is the "acute" angle, then the reflex angle is: 360° - 20° = 340°
The angle of reflection will be equal to the angle of incidence, which is 20 degrees in this case.
The angle of reflection is equal to the angle of incidence, so if the angle of incidence is 20 degrees, then the angle of reflection will also be 20 degrees.
40
When two plane mirrors are tilted at an angle of 72 degrees, six images are formed. The first two images are the direct reflections from each mirror, and the remaining four images come from the multiple reflections between the mirrors.
The angle between the incident ray and the reflected ray is equal to the angle between the incident ray and the normal. When the mirror is rotated, the normal also rotates by the same angle. Therefore, the angle between the incident ray and the reflected ray will still be 20 degrees.
To find the angle of incidence when the angle of refraction is 20 degrees, you can use the formula for Snell's Law: n1 sin(θ1) = n2 sin(θ2). Given that n1 and n2 are the refractive indices of the media and we know θ2 (20 degrees), you can calculate θ1.
The hairdresser's eyes must be focused on a point that is 40 cm away from the mirror surface in order to see her nose image in the mirror. This is because the distance from her eyes to the mirror is 20 cm, and the distance from the mirror to the virtual image of her nose is also 20 cm, totaling 40 cm.
The angle of incidence is what trajectory the suns burst is taking. If the burst is pointed 20 degrees in any direction, slightly away from the earth, then the intensity of the impact on earth would be less severe since only a portion of the burst is actually making contact. While the rest of it flies into space for millions and millions and millions of kilometers.
An angle whose measure is 20 degrees!
to construct an angle of 20 degrees all you have to do is to trisect an angle of 60degrees
90 - 20 = 70 degrees.
It is an 8 sided octagon whose 8 interior angle add up to 1080 degrees and has 20 diagonals