Isosceles triangle, but it's not equilateral. That are the same length, but the third is different. This one, the sides areĭefinitely not the same length. Categorize the followingĪll of the sides have to have the same length.
![scalene equilateral and isosceles triangle worksheet scalene equilateral and isosceles triangle worksheet](https://img.yumpu.com/31081214/1/500x640/48-isosceles-amp-equilateral-triangles.jpg)
Sides are seven, but one side has length 4. Which of the followingĪre correct descriptions of triangle PIG? Or I guess triangle pig? Select all that apply. This is obtuse, and angle BAC also looks like These are drawn to scale, so we can base it on Is larger than 90 degrees, and we can assume that Just by looking at it, you see that all of themĪre less than 90 degrees, so I'll put this not obtuse. That this one does not have any obtuse angles. So an obtuse triangleĪngle in it, or an angle that is larger than 90 degrees.
![scalene equilateral and isosceles triangle worksheet scalene equilateral and isosceles triangle worksheet](https://media.nagwa.com/139120216703/en/thumbnail_l.jpeg)
So all other quadrilaterals are irregular.Triangles according to whether or not theyĪre obtuse triangles. The only regular (all sides equal and all angles equal) quadrilateral is a square. Example of one question: Watch below how to solve this example: congruent triangles-isosceles-and-equilateral-triangles-hard.pdf. and that's it for the special quadrilaterals. This free worksheet contains 10 assignments each with 24 questions with answers. one of the diagonals bisects (cuts equally in half) the other.Examples of each kind of triangle will also be provided. Scalene triangles are made up of three sides and three different angles. Isosceles triangles have equally-sized sides and two angles. the diagonals, shown as dashed lines above, meet at Equilateral triangles are made up of three equal sides and three equally angled angles of 60 degrees.The KiteĮach pair is made of two equal-length sides that join up. (the US and UK definitions are swapped over!)Īn Isosceles trapezoid, as shown above, has left and right sides of equal length that join to the base at equal angles. NOTE: Squares, Rectangles and Rhombuses are allĪ trapezoid (called a trapezium in the UK) has a pair of opposite sides parallel.Īnd a trapezium (called a trapezoid in the UK) is a quadrilateral with NO parallel sides: Also opposite anglesĪre equal (angles "A" are the same, and angles "B" The ParallelogramĪ parallelogram has opposite sides parallel and equal in length. In other words they "bisect" (cut in half) each other at right angles.Ī rhombus is sometimes called a rhomb or a diamond. The RhombusĪ rhombus is a four-sided shape where all sides have equal length (marked "s").Īlso opposite sides are parallel and opposite angles are equal.Īnother interesting thing is that the diagonals (dashed lines) meet in the middle at a right angle. The SquareĪ square has equal sides (marked "s") and every angle is a right angle (90°)Ī square also fits the definition of a rectangle (all angles are 90°), and a rhombus (all sides are equal length). The little squares in each corner mean "right angle"Ī rectangle is a four-sided shape where every angle is a right angle (90°).Īlso opposite sides are parallel and of equal length. Let us look at each type in turn: The Rectangle Some types are also included in the definition of other types! For example a square, rhombus and rectangle are also parallelograms. There are special types of quadrilateral: They should add to 360° Types of Quadrilaterals Try drawing a quadrilateral, and measure the angles.
![scalene equilateral and isosceles triangle worksheet scalene equilateral and isosceles triangle worksheet](https://i.ytimg.com/vi/tTv8w5s1Zwc/maxresdefault.jpg)
interior angles that add to 360 degrees:.(Also see this on Interactive Quadrilaterals) Properties