Agenda. Go over homework. Go over Exploration 8.13: more practice A few more details--they are easy. Lots more practice problems. Study hard! And bring a ruler and protractor. Homework 8.2.
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Two figures are congruent if they are exactly the same size and shape.
Think: If I can lay one on top of the other, and it fits perfectly, then they are congruent.
Question: Are these two figures congruent?
Similar: Same shape, butmaybe different size.
acute scalene, right scalene, obtuse scalene, acute isosceles, right isosceles, obtuse isosceles, equilateral
Triangles: acute scalene, right scalene, obtuse scalene, acute isosceles, right isosceles, obtuse isosceles, equilateral
Quadrilaterals: kite, trapezoid, parallelogram, rhombus, rectangle, square
Name all that have:
At least 1 right angle
At least 2 congruent sides
At least 1 pair parallel sides
At least 1 obtuse angle and 2 congruent sides
At least 1 right angle and 2 congruent sides