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What are the marks used on a figure to indicate congruent segments?
A single slash perpendicular to the line is used to show it is congruent. In other words, if two segments are congruent they would both have a single slash through them, but if you have multiple pairs, each separate pair would have its own unique number of slashes (1,2,3...).
What is the matching angle mark to indicate which angles are congruent For line AB and CD?
To indicate that angles are congruent, matching angle marks such as arcs or hash marks are typically used. For angles formed by lines AB and CD, you would place the same number of arcs or hash marks in each angle that you want to show as congruent. For example, if angles ∠1 and ∠2 are congruent, you might place one arc in both angles to signify their equality.
Can you show me how the triangular prism look like?
Since I can't attach illustrations here (can I?), I can describe one. If two congruent and parallel triangles have vertices joined by line segments, the line segments described will mark the boundaries of a solid.
How do you Prove triangle ACD is congruent to triangle BDC?
Because Corresponding Parts of Congruent Triangles, there are five ways to prove that two triangles are congruent. Show that all sides are congruent. (SSS) Show that two sides and their common angle are congruent. (SAS) Show that two angles and their common side are congruent. (ASA) Show that two angles and one of the non common sides are congruent. (AAS) Show that the hypotenuse and one leg of a right triangle are congruent. (HL)
Can you show that two triangles are congruent by angle-angle-angle?
No, because they need not be congruent.
