4.1-4.3 Quiz hnr. Geometry

Def. of Congruent Triangles

same shape, size, corresponding angles, sides

SSS (side, side, side)

if 3 sides of 1 triangle are congruent to 3 sides of another triangle then the triangles are congruent

SAS (side, angle, side)

if 2 sides and the an angles of 1 triangle are congrunet to another triangles 2 sides and 1 angle then the 2 triangles are congruent

ASA (angle,side,angle) 

if 2 angles and 1 side of a triangle are congruent to another triangles 2 angles and 1 side, then the two triangles are congruent. 

A line and a plane are perpendicular if and only if they…

intersect and the line is perpendicular to all lines in the plane that pass through the point of intersection

CPCTC ( corresponding parts of congruent triangles are congruent)

all corresponding sides and angles of two triangles are congruent, but only after you have already proven the entire triangles are congruent using another method like SSS, SAS, ASA