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Line & Angle Recognition. Adjacent. Vertical. O pposite angles made by two intersecting lines. Angles that share a side. Congruent. Complementary. Angles with the same measure. 2 angles whose sum 90°. Supplementary. Linear Pair. 2 angles whose sum is 180 °.
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Line & Angle Recognition Adjacent Vertical Opposite angles made by two intersecting lines Angles that share a side Congruent Complementary Angles with the same measure. 2 angles whose sum 90° Supplementary Linear Pair 2 angles whose sum is180° 2 angles that form a line.
ANGLE PAIR CARDS Angles add up to 180 ° Angles are Angles add up to 90° a = b a + b = 90 a + b = 180
Triangle Angles #2 The sum of the Remote Interior Angles equal the measure of the Exterior Angle. The sum of the angles in a triangle is 180. a + b + c = 180 a + b = d
Parallel Lines & Transversals ? #4 Transveral A line that intersects two or more lines. n is parallel to m Exterior Corresponding Angles Alternate Exterior Angles Same-Side Exterior Angles Same-Side Exterior Angles Alternate Exterior Angles Corresponding Angles n Same-Side Interior Angles Alternate Interior Angles Corresponding Angles Same-Side Interior Angles Corresponding Angles Alternate Interior Angles HOT LAVA Interior Think of the space between the two parallel lines as a river of Hot Lava and the Transversal as a bridge to cross safely to the other side. Corresponding Angles Alternate Interior Angles Same-Side Interior Angles Alternate Interior Angles Corresponding Angles Same-Side Interior Angles m Same-Side Exterior Angles Alternate Exterior Angles Corresponding Angles Corresponding Angles Same-Side Exterior Angles Alternate Exterior Angles Exterior Corresponding Angles are in the same spot when you slide up/down the Transversal. Same-Side Exterior Angles are outside the Parallel lines and on the SAME SIDE of the Transversal Same-Side Interior Angles are between the parallel lines and on the SAME SIDE of the Transversal Alternate Exterior Angles are outside the Parallel lines and on Opposite Sides of the Transversal Alternate Interior Angles are between the parallel lines and on Opposite Sides of the Transversal There are 8 angles made with this Transversal. We have Angle Pairs with specific names.
ANGLE PAIR CARDS Angles are Angles are Angles are Angles are Angles are a = b a = b a = b a + b = 180 a + b = 180
LETS TRY SOME PROBLEMS 3 ANSWERS EACH. Name the angle relationship, indicate if they are congruent or supplementary AND then find the measure of each angle indicated.