Similarity, Right Triangles, and Trigonometry

Browse our 250,000+ quizzes tagged to specific skills in more than 50 curricula and standards

TRY FOR FREE NOW

Understand that by similarity, side ratios in right triangles are properties of the angles in the triangle, leading to definitions of trigonometric ratios for acute angles.
Verify experimentally the properties of dilations given by a center and a scale factor.
Prove the Laws of Sines and Cosines and use them to solve problems.
Understand and apply the Law of Sines and the Law of Cosines to find unknown measurements in right and non-right triangles (e.g., surveying problems, resultant forces).
The dilation of a line not passing through the center of the dilation results in a parallel line and leaves a line passing through the center unchanged
The dilation of a line segment is longer or shorter according to the ratio given by the scale factor.
Given two figures, use the definition of similarity in terms of similarity transformations to decide if they are similar; explain, using similarity transformations, the meaning of similarity for triangles as the equality of all corresponding pairs of angles and the proportionality of all corresponding pairs of sides.
Use the properties of similarity transformations to establish the AA criterion for two triangles to be similar
Prove theorems about triangles. Theorems include: a line parallel to one side of a triangle divides the other two proportionally, (and its converse); the Pythagorean Theorem using triangle similarity.
Use congruence and similarity criteria for triangles to solve problems and to prove relationships in geometric figures
Explain and use the relationship between the sine and cosine of complementary angles.
Use trigonometric ratios and the Pythagorean Theorem to solve right triangles in applied problems.
Derive the formula A = (1/2)ab sin(C) for the area of a triangle by drawing an auxiliary line from a vertex perpendicular to the opposite side.

Looking for more resources?

Browse all quizzes

Why is Quizalize the best quiz platform for your classroom?

New to Quizalize?

Learn how to leverage Quizalize in the classroom