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What is different between 1st angle and 3rd angle?
Basically its just where you position the views of the main object, in first angle projection, if you view the object from the left, the view is drawn to the right of the object, in third angle projection, its drawn on the viewing side.
What is the advantage of measuring the angle of reflection and angle incident on either side of the normal to the surface of the mirror?
We measure them on the either side of the mirror and not on the side of the normal to the surface of the mirror because, if the mirror or any reflecting surface is bent, then there will be a difference between the angle of incidence and angle reflection which can be avoided by measuring those angles on the either side of the mirror.
What is the type of congruence between the triangles shown?
side- angle- side
What does it mean for a side or angle to be included?
The 'included side' is the side between the two given angles. The 'included angle' is the angle between the two given sides.
Is angle-angle-side a correct property of concurrency of triangles?
As long as the sides correspond then yes. The other three are: Side-Side-Side Side-Angle-Side - the angle *MUST* be between the two sides Right angle-Hypotenuse-Side
The set of all points between the side of an angle?
interior of an angle
How many different quadrilaterals have exactly 2 congruent side's?
The answer depends on two side's what!If you meant two sides, then there are infinitely many quadrilaterals - each different angle between the sides will give a different shape.
What describes the angle between the top and side of an open box?
An obtuse angle
What is the name for the angle between the top and side of an open box?
An obtuse angle.
What are the 5 shortcuts used for proving triangles are congruent?
I only know 3. SSS (side/side/side) -> if all three sides are the same length SAS (side/angle/side) -> if two sides and the angle between them are the same ASA (angle/side/angle) -> if two angles and the side between them are the same
Working out triangle dimensions from angle and one side?
You can make an infinite number of different triangles that all have the same one angle and one side.That's not enough information to pin it down to one unique triangle.You need a minimum of either:-- two sides and the angle between themOR-- two angles and the side between them
What postulate proves that two triangles are congruent?
Side Side Side Side Angle Side Angle Side Side Angle Side Angle Side Side Angle Angle Angle Side With Angle congruency and Side congruency in that order
