### ch 7 Geometry

Mrs. Grove

 acute triangle is a polygon with all sides congruent and all angles vertical angles an angle between 0 degrees and 90 degrees complementary when the sum of 2 angles = 90 degrees equilateral triangle when the sum of 2 angles are =180 degrees isosceles triangle a triangle with one 90 degree angle obtuse triangle a trapezoid with exactly one pair of parellel parallel lines has 4 congruent sides and 4 right angles parallelogram is a quadrilateral with both pairs of opposie sides parallel rectangle has 3 congruent sides congruent angles angles that are betweeen 90 and 180 degrees regular polygon has at least 2 congruent sides rhombus is a triangle with no equal sides right triangle formed by 2 intersecting lines & are opposite each other scalene triangle has 4 congruent sides square angles with = measures supplementary a four sides figure with 4 right angles trapazoid lines on the same plane and never intersect

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