Ratio and Proportion/Properties
Similar Polygons
Postulates/Theorems for Similar Triangles
Proportional Lengths, Perimeter and Area
Random
100
Write the ratio in simplest form: 15:25
What is 3:5
100
If two polygons are similar, then the ratio of the lengths of two corresponding sides is called ________ _________________.
What is scale factor.
100
If two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar. This is called the _____ ________ Postulate.
What is Angle Angle (AA) Similarity Postulate
100
Tell whether 2/8 and 3/12 form a proportion
What is yes they form a proportion
100
The measures of the angles of a triangle are in the ratio 4:4:7. Find the three measures of the angles.
What is 48, 48, 84.
200
What do these ratios form 5/3 and 35/21
What is a proportion
200
If quad ABCD is similar (~) to quad EFGH, what are the pairs of corresponding angles?
What is angle A-E, angle B-F, angle C-G, and angle D-H.
200
Look at diagram on page 457, #2 and tell whether the two polygons are similar.
What is yea they are similar.
200
Find the ratio on page 424 #11
What is 3/2
200
If Triangle ABC ~ Triangle DEF, then angle B = angle _______ and AB/DE = ___/DF
What is angle E, AC.
300
Solve for x. x/7= 4/2
What is x=7
300
The scale factor of a quadrilateral and the _______________ are always the same proportion.
What is perimeter.
300
Look at the diagram on page 431, #3 and tell whether the triangles are similar or not. If they are, what postulate or theorem justifies your answer?
What is yes they are similar by AA Postulate
300
Page 424, #24. Find the correct area
What is 216ft^2
300
If three sides of a triangle are proportional to three sides in another triangle, the triangles are similar
What is the SSS Theorem of Similarity
400
Solve the proportion for x: x + 5/4 = 1/2
What is -3
400
What is the scale factor of DC to D'C'? DC=10, D'C'=40
What is 1/4
400
Look at the diagram on page 441 #2 and determine which triangle doesn't belong.
What is yes the 4th triangle
400
Page 423, #5, find x.
What is x=30
400
If two pairs of sides in a triangle are proportional to two pairs of sides in another triangle, and the included angles are congruent, then the triangles are similar
What is the SAS Theorem of Similarity
500
If x/y = 5/8, then: x/5 = ____ ?
What is y/8
500
The _______________ of a quadrilateral is proportional to the scale factor squared
What is area
500
Find the value of x on page 441 #5.
What is x= 4
500
Page 424 #19, find the area.
What is 108ft^2
500
Write a ratio of Snows to Starks in Winterfell in the first episode of Game of Thrones Eddard Stark, Catelyn Stark, Robb Stark, Sansa Stark, Arya Stark, Bran Stark, Rickon Stark and Jon Snow are all present
What is 1:8
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