# 7-2 PROBLEM SOLVING RATIOS IN SIMILAR POLYGONS ANSWERS

Click here to measure the side IK. If two polygons are similar, then the ratio of the lengths of the two corresponding sides is the scale factor. Solving Problems with Similar Polygons: We know that a proportion is two ratios that are equal to each other, so you can use either ratio, the relative size or the scale factor, and find the missing side. Similar Polygons and Triangle Similarity Shortcuts.

Discovering and Proving Angle Relationships Unit 5: Solve and Prove Similar Polygons. Solve and Prove Similar Polygons 50 minutes. If two polygons are similar, then the ratio of the lengths of the two corresponding sides is the scale factor. We can use the relationship between two of the corresponding sides, to find the rest of the corresponding sides. Use similar polygons to solve problems.

Now we will have the same relationship between the other two sides: When two shapes have the same shape but different sizes, we call the shapes similar. Check the angles and corresponding sides: Are the triangles similar?

## Similarity Problem Solving and Proofs

Explore the Polygons in Proble. Geometric Measurement and Dimension Unit Discovering and Proving Circles Properties Unit Since we have only discussed dilations informally up until this point, I take time to talk about the notion of a scale factoremphasizing that dilations scale lengths while preserving angle measures. When groups of four have finished comparing their work, they may call me over to check their work against an answer key: To keep the conversation growing, I will ask pairs to then compare their thinking as a group of four with their table partners.

Check the angles and corresponding sides: You can also think of similar objects or shapes as scaled versions of each other. Toys cars and airplanes that are scaled down versions of the real objects. Recall that a polygon is a closed shape consisting of a finite similxr of line segments that do not cross each other.

A large flag flown in front of a school is 4ft. Similar Polygons and Triangle Similarity Shortcuts.

# | CK Foundation

Discovering and Proving Angle Relationships Unit 5: Triangle Similarity and Trigonometric Ratios Unit All the angles in a rectangle are congruent to each other and now check that the sides are proportional to each other. We know that a proportion is two ratios that are equal to each other, so you can use either ratio, the relative size or the scale factor, and find the missing side.

Make sure that all of your units are the same in the ratios that you set up. The Soda Can Task: Applications Using Similar Polygons: Use similar polygons to solve problems.

Applications Using Similar Polygons: Dilation and Similarity Unit Test.

We know that a proportion is two ratios that are equal to each other, so you can use either ratio, the relative size or the scale factor, and find the missing side.

Below are a few examples of polygons: If you want the flag to be 2ft. If two polygons are similar, then the ratio of their perimeters is equal to the ratios of their corresponding side lengths.

# Ratios and Proportions – Similar figures – First Glance

Toys cars and airplanes that are scaled down versions of the real objects. Suppose you want to make a scaled down version of the flag. Explore these similar polygons in GSP solbing if the theorem holds: When we debrief the warm-up, I call on student volunteers who are willing to share out and defend their answers. Big Idea Students will deepen their understanding of triangle similarity by solving similarity problems and writing proofs.

A large flag flown in front of a school is 4ft.

All the angles in a rectangle are congruent to each other and now check that the sides are proportional to each other.