WorksheetsIntro to Similarity
Total questions: 9
Worksheet time: 8mins
Which statement provides a valid justification for why all circles are similar?
All circles have the same shape - a circle - so they must be similar
All circles have no angles and no sides, so they must be similar
I can translate any circle exactly onto another, so they must be similar
I can translate the center of any circle to the center of another, and then dilate from that center by an appropriate scale factor, so they must be similar
Similar or not?
Similar
Not similar
Similar or not?
Similar
Not similar
Similar or not?
Similar
Not similar
Similar or not?
Similar
Not similar
Select ALL sequences of transformations that would show that
ΔABC and ΔAED are similar. The length of AC is 6 units.Dilate triangle ABC using center A by a scale factor of 1/2, then reflect over line AC
Dilate triangle AED using center A by scale factor if 2, then reflect over line AC
Reflect triangle ABC over line AC, then dilate using center A by a scale factor of 1/2
Reflect triangle AED over line AC, then dilate using center A by a scale factor of 2
Translate triangle AED by directed line segment DC, then dilate using center C by scale factor 2
True or false?
Two equilateral triangles are similar
True
False
True or false?
An equilateral triangle and a square are similar
True
False
Select ALL true statements given that angle AED is congruent to angle ABC
∠ACB is 180−x°
∠ACB is x°
ΔACB ∼ ΔADE
AD = 31AC
AD=21DC
