Scalene Triangle Study Guide

Definition:

A scalene triangle is a triangle with three unequal sides and three unequal angles.

Characteristics:

1. All three sides have different lengths.

2. All three angles have different measures.

Properties:

- The sum of the lengths of any two sides of a scalene triangle is greater than the length of the third side.

- The interior angles of a scalene triangle are also unequal.

Example:

Given the side lengths of a triangle as a = 5 cm, b = 7 cm, and c = 9 cm, determine if it is a scalene triangle.

Solution:

Since all three sides have different lengths (5, 7, and 9), the triangle is a scalene triangle.

◂Math Worksheets and Study Guides Fourth Grade. Measurement

Study Guide

Measurement

Activity Lesson

Comparing Volume Capacities

Activity Lesson

Measurement Conversion Cards

Activity Lesson

Temperature - Reading Thermometers

Measurement & Money Crossword

Worksheet/Answer key

Measurement Conversions

Vocabulary/Answer key

Measurement

Vocabulary/Answer key

Measurement

Vocabulary/Answer key

Measurement

The resources above cover the following skills:

Measurement (NCTM)

Understand measurable attributes of objects and the units, systems, and processes of measurement.

Understand such attributes as length, area, weight, volume, and size of angle and select the appropriate type of unit for measuring each attribute.

Understand the need for measuring with standard units and become familiar with standard units in the customary and metric systems.

Understand that measurements are approximations and how differences in units affect precision.

Apply appropriate techniques, tools, and formulas to determine measurements.

Select and apply appropriate standard units and tools to measure length, area, volume, weight, time, temperature, and the size of angles.