## Triangles And Angles Homework

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Here is a graphic preview for all of the Triangle Worksheets. You can select different variables tocustomize these Triangle Worksheets for your needs. The Triangle Worksheets are randomly created and will never repeat so you have an endless supply of quality Triangle Worksheets to use in the classroom or at home. We have a triangle fact sheet, identifying triangles, area and perimeters, the triangle inequality theorem, triangle inequalities of angles and angles, triangle angle sum, the exterior angle theorem, angle bisectors, median of triangles, finding a centroid from a graph and a set of vertices for your use. Our Triangle Worksheets are free to download, easy to use, and very flexible.

Identify Triangles WorksheetsThis Triangle Worksheet will produce twelve problems for identifying different types of triangles. You may select equilateral, right scalene, right isosceles, obtuse scalene, obtuse isosceles, acute scalene and acute isosceles. This worksheet is a great resources for the 5th, 6th Grade, 7th Grade, and 8th Grade.

Area and Perimeter of Triangles WorksheetsThis Triangle Worksheet will produce nine problems for solving the area and perimeter of different types of triangles. This worksheet is a great resources for the 5th, 6th Grade, 7th Grade, and 8th Grade.

Triangle Angle Sum WorksheetsThis Triangle Worksheet will produce triangle angle sum problems. You can choose between interior and exterior angles, as well as an algebraic expression for the unknown angle. This worksheet is a great resource for the 5th, 6th Grade, 7th Grade, and 8th Grade.

Medians of Triangles WorksheetsThis Triangle Worksheet will produce median problems. You may select the problem types to be integers, decimals, or algebraic expression. This worksheet is a great resource for the 5th, 6th Grade, 7th Grade, and 8th Grade.

The free printables in this post deal with finding the unknown angles of triangles. Your concepts of interior and exterior angles of triangles should be sound if you want to solve the problems without hiccups.

The worksheets on this page require grade school students to solve problems related to the angles of triangles, including calculating interior angles, calculating exterior angles and calculating the lengths of line segments created from triangle angle bisectors. Click the images below to open each PDF worksheet with answer keys and get your triangle geometry practice started!

These triangle worksheets make use of the Triangle Sum Theorem which states that the sum of the interior angles of a triangle is always 180 degrees. More details on how to use this triangle postulate to calculate misisng angles are discussed at the bottom of this page.

A common problem is calculating a missing angle in a right triangle. In these triangle problems, we know that one of the angles must be exactly 90 therefore only one other angle must be known to calculate the third missing angle:

Another common problem involves finding the two base angles for an isosceles triangle given the triangles vertex or apex angle. Because the legs of an isosceles triangle are equal, the corresponding adjacent angles at the triangles base are also equal, so calculating the measure of the leg angles involves substracting the vertex angle from 180 and dividing the result among the two remaining angles:

The exterior angle of a triangle is calculated using the properties of supplementary angles. By extending a line from one of the triangle's sides, the exterior angle can be calculated from the adjacent interior angle by subtracting that angle from 180. Conversely, the interior angle can be calculated by from the exterior angle using procedure. The triangle worksheets on this page provide practice calculating interior angles given exterior angles, or calculating exterior angles given interior angles.

An angle bisector of a triangle is a line that divdes one of the triangle's interior angles in half. The resulting line segment splits to opposite side of the tri