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What does a triangle turned 180 degrees look like?
A triangle. The effect of turning will depend on whether the plane containing the triangle is rotated - that is, the triangle is rotated around an axis perpendicular to its plane. In that case, it will appear upside down. Alternatively, it can be rotated about an axis in the plane of the triangle. In this case it will appear flipped.
What is the minimum number of degrees that an equilateral triangle can be rotated before it carries onto itself?
The minimum number of degrees that an equilateral triangle can be rotated before it carries onto itself is 60 degrees bout its vertical axis.
Can a point or a line segment be its own preimage?
A point or a line segment can be a preimage of itself because a line can be reflected or rotated.
What shape is generated when triangle ABC is rotated around the vertical line through B and C?
Cone
How many degrees has triangle ABC been rotated counterclockwise about the origin?
180 degrees.
What is tesslation?
It's when a figure is rotated, reflected , translated etc but the corresponding angles and side lengths stay the same.
When a figure is translated reflected or rotated what is the same about the original figure and its image?
It still has the same weight. Even turned or reflected the weight/mass remains the same.
What does a triangle turned 180 degrees look like?
A triangle. The effect of turning will depend on whether the plane containing the triangle is rotated - that is, the triangle is rotated around an axis perpendicular to its plane. In that case, it will appear upside down. Alternatively, it can be rotated about an axis in the plane of the triangle. In this case it will appear flipped.
When a plane mirror is rotated by an angle theta what will be the rotation of the reflected light?
2*theta
When a mirror with a fixed beam on it is rotated through a certain angle the reflected beam is rotated through an angle that is?
twice the angle of the mirror rotation.
What do you call a 3d right angle triangle?
It depends on the axis around which the triangle is rotated to generate the 3-d version. If rotated about the hypotenuse, you would get a circular wedge. If either of the other sides, you would get a cone.
What is the minimum number of degrees that an equilateral triangle can be rotated before it carries onto itself?
The minimum number of degrees that an equilateral triangle can be rotated before it carries onto itself is 60 degrees bout its vertical axis.
How do you rotate a triangle around a point that is not origin?
If you know how to rotate a triangle around the origin, treat the point as the origin.If you have Cartesian coordinates (that is x, y pairs) for the points of the triangle,subtract the coordinates of the centre of rotation from the coordinates of the triangle, do the rotation and then add them back on.Doing it geometrically:Draw line from centre of rotation to a point (for example a vertex)Measure the required angle from this line and draw in the rotated lineMeasure the distance from the centre of rotation to the original point and measure along the rotated line the required distance to get the rotated point.repeat for as many points as needed (eg the 3 vertices of the triangle) and join together the rotated points in the same was as the original points.[The construction lines drawn to the centre of rotation can be erased once the rotated point is found.]
A point of symmetry is a point around which a shape can be rotated without changing any of its characteristics?
If it says rotated it's true If it says reflected it is false
Can a point or a line segment be its own preimage?
A point or a line segment can be a preimage of itself because a line can be reflected or rotated.
A reflected ray in a mirror makes an angle of 20 and deg with the incident ray. when the mirror is rotated 15 and deg what angle will the reflected ray now make with the incident ray?
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.
What shape is generated when triangle ABC is rotated around the vertical line through B and C?
Cone
