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Studu GuideAngle RelationshipsThe following table identities several different types of anglesthat occur in pairs.
Student EditionPoges 53-60
ldentify each pair of angles as adjacent, vertical,complementary, supplementary, and/or as a linear pair.
L. LL and L2
3. LB and L4
2. Ll and L4
4. Ll and L5
7
Pairs of Angles
Special Name Definition Examples
adjacent angles angles in the same plane thathave a common vertex and acommon side, but no commoninterior points G
LEHF and LFHG are adjacentangles.
vertical angles two nonadjacent angles formedby two intersecting lines (Verticalangles are congruent.)
Ll and L3 are vertical angles.L2 and L4 are vertical angles.LL= L3, L2 = L4
linear pair adjacent angles whosenoncommon sides are oppositerays
L5 and LG form a linear pair.
complementaryangles
two angles whose measures havea sum of 90
supplementaryangles
two angles whose measures havea sum of 180
-: ----199--_
Find the value of x.
(7x + 10)o
@ Glencoe/McGraw-Hill Geometry