Operating on the triangle. Using a straightedge, draw a random triangle. Now carefully cut it out. Next amputate the angles by snipping through adjacent sides. Now move the angles together so the vertices all touch and the edges meet. What do you conclude about the sum of the angles of a triangle? Try this procedure with triangles having different dimensions.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
The Heart of Mathematics: An Invitation to Effective Thinking
Additional Math Textbook Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
Mathematical Ideas (13th Edition) - Standalone book
Using & Understanding Mathematics: A Quantitative Reasoning Approach (7th Edition)
Mathematical Methods in the Physical Sciences
Thinking Mathematically (7th Edition)
Fundamentals of Differential Equations and Boundary Value Problems
- Geometry An isosceles triangle is a triangle in which two sides are equal in length. The angle between the two equal sides is called the vertex angle, while the other to angles are called the base angles. If the vertex angle is 40, what is the measure of the base angles?arrow_forwardABC is similar to XYZ The lengths of two sides of each triangle are given in the figure. Find the length of side a.arrow_forwardABC is similar to XYZ. The lengths of two sides of each triangle are given in the figure. Find the length of side y.arrow_forward
- Trigonometry (MindTap Course List)TrigonometryISBN:9781305652224Author:Charles P. McKeague, Mark D. TurnerPublisher:Cengage LearningMathematics For Machine TechnologyAdvanced MathISBN:9781337798310Author:Peterson, John.Publisher:Cengage Learning,Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillElementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University