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Similar and congruent figures
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ACOS Objective 12
Determine the lengths of missing sides and measures of angles in similar and congruent figures.
Applying proportional reasoning
Using dilations on the coordinate plane to determine measures of similar figures
Finding the ratios of the perimeters and areas of similar triangles, trapezoids, and parallelograms
ARMT Possible Points = 4 (MC, GR)
Diagrams may be included.
Use of the scale factor will be required.
Fraction or decimal representation of a real number may be used.
Determining the measurements of sides when the measurements of the sides are expressed as algebraic expression may be required.
Inscribed figures may be used.
Reflected (translated) figures may be used.
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ACOS Objective 12
Determine the lengths of missing sides and measures of angles in similar and congruent figures.
ARMT Possible Points = 4 (MC, GR)