Special Triangles and Quadrilaterals - McNabbs

1 Name_____ Period_____ Date_____ Special Triangles and Quadrilaterals 1) An _____ is a triangle that has two sides that are the same length. The opposite angles are always the same measure in degrees also. Like all Triangles , the angles will all add up to _____. 2) 3) 4) 30O 15 ft 130O _ ft 30O 3 cm 25O ____ O in ft 5 cm ____ O 19 ft 3 cm 75O 75O in 30O 5) A _____ is a triangle that has a 90O in it. Like all Triangles , the angles will all add up to _____. 6) 7) 8) 53O ____ O 60O ____ O ____ O 76O 9) An _____ is a triangle that has a 90O in it, two of its sides are the same length, and two of its angles are congruent.

2 Like all Triangles , the angles will all add up to _____. 10) 11) 12 yds 12) 45O ____ O 6 in 3 ft ft yds ____ O ____ O 15 yds ____ O ft ft ____ O ft 13) A _____ is a quadrilateral (has ___ sides) that has two sides that are parallel. Like all convex Quadrilaterals , the angles will all add up to _____. 14) A _____ is a quadrilateral (has ___ sides) that has two pairs of parallel sides. Like all convex Quadrilaterals , the angles will all add up to _____. 15) An _____ is a trapezoid that has two pairs of adjacent angles that are congruent.

3 Like all convex Quadrilaterals , the angles will all add up to _____. 16) A _____ is a quadrilateral that has all angles equal to 90O. Like all convex Quadrilaterals , the angles will all add up to _____. 17) A _____ is a rectangle where all the sides are the same length. Like all convex Quadrilaterals , the angles will all add up to _____. 18) A _____ is a parallelogram where all the sides are the same length. Like all Quadrilaterals , the angles will all add up to _____. 19) A _____ is a quadrilateral that has two pairs of adjacent sides that are congruent. ___ O 75O 115O ____ O 65O 115O 53O ____ O 127O ____ O 25 ft 3 ft 2 mm 13 in 2 in 1 in 3 in 3 in Name __ANSWER KEY_____ Period_____ Date_____ Special Triangles and Quadrilaterals 1) An _isosceles triangle__ _____ is a triangle that has two sides that are the same length.

4 The opposite angles are always the same measure in degrees also. Like all Triangles , the angles will all add up to 180 degrees. 2) 3) 4) 30O 15 ft 130O 15 ft 30O 3 cm 25O __25 O in ft 5 cm _120 O 19 ft 3 cm 75O 75O in 30O 5) A _right triangle__ _____ is a triangle that has a 90O in it. Like all Triangles , the angles will all add up to 180 degrees. 6) 7) 8) 53O 13 O 60O _37 O _30_ O 76O 9) An __isosceles right triangle_____ is a triangle that has a 90O in it, two of its sides are the same length, and two of its angles are congruent.

5 Like all Triangles , the angles will all add up to 180 degrees. 10) 11) 12 yds 12) 45O _45_ O 6 in 3 ft ft 12 yds _45_ O 45_ O 15 yds _45_ O ft ft _45_ O 3 ft 13) A ___trapezoid_____ is a quadrilateral (has _4_ sides) that has two sides that are parallel. Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 14) A __parallelogram_____ is a quadrilateral (has _4_ sides) that has two pairs of parallel sides. Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 15) An __isosceles trapezoid_____ is a trapezoid that has two pairs of adjacent angles that are congruent.

6 Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 16) A ___rectangle_____ is a quadrilateral that has all angles equal to 90O. Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 17) A __square_____ is a rectangle where all the sides are the same length. Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 18) A __rhombus_____ is a parallelogram where all the sides are the same length. Like all convex Quadrilaterals , the angles will all add up to _360 degrees_. 19) A ____kite_____ is a quadrilateral that has two pairs of adjacent sides that are congruent. _105_ O 75O 115O _65_ O 65O 115O 53O _53_ O 127O _127_ O 25 ft 3 ft 2 mm 13 in 2 in 1 in 3 in 3 in