Determine the Relationship Between Two Angles - Grade 7 Mathematics

Determine the Relationship Between Two Angles - Grade 7 Mathematics

• 1.
  ANGLE PAIRS  ComplementaryAngles Two angles whose sum of the measurement is 900 . m B = 40 ∠ 0 m A = 50 ∠ 0 500 400 B A m A + m B ∠ ∠ 500 + 400 = 900
• 2.
   Complementary Angles Twoangles that makes up a right angle. ∠ABC & DBC ∠ are complementary angles. B A C D ANGLE PAIRS
• 3.
   Supplementary Angles Twoangles whose sum of the measurement is 1800 . m D = 55 ∠ 0 m C = 125 ∠ 0 1250 550 D C m C + m D ∠ ∠ 1250 + 550 = 1800 ANGLE PAIRS
• 4.
   Supplementary Angles Twoangles that makes up a straight line. ∠EFH & HFJ are supplementary ∠ angles. F E H J ANGLE PAIRS
• 5.
   Adjacent Angles Twoangles that share a common side (ray) and same vertex. ∠LMK & MKN are ∠ adjacent angles. Vertex: K Common Side: KM K L N O M ANGLE PAIRS
• 6.
   Congruent Angles Twoangles whose measures are equal. ∠MNO & ABC are ∠ congruent angles. ANGLE PAIRS B A C N M O
• 7.
   Linear Pair Twoangles that are supplementary and adjacent. ∠LMK & MKO ∠ form a linear pair. K L O M ANGLE PAIRS
• 8.
   Vertical Angles Anglesformed by two intersecting lines. ∠RSV & QST are ∠ vertical angles. T Q V S R ∠QSR & TSV are ∠ vertical angles. ANGLE PAIRS
• 9.
   Intersecting Lines Linesthat crosses at a common point. Lines a and m are intersecting lines. a A m They intersect at point A. LINES
• 10.
   Perpendicular Lines Twointersecting lines that form 90° angles. Lines a and m are perpendicular lines. a 1 m ∠1 is a right angle. LINES
• 11.
   Parallel Lines Twolines that maintains an equal distance from each other. They never intersect. Lines a and m are parallel lines. a m LINES