CRA Lesson 21

All acute angles...

• measure  $<90$  

• measure  $>90$  

• measure  $=90$  

• measure  $=30$  

All obtuse angles...

• measure  $<90$  

• measure  $>90$  

• measure  $=90$  

• measure  $=120$  

________________ angles add to 90 degrees.

• complementary

• supplementary

________________ angles add to 180 degrees.

• complementary

• supplementary

Which number line represents the solutions  $x<3$  

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Which number line represents the solutions  $x\ge3$  

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To solve a two-step equation.... (Select 2)

• First undo the constant

• First undo the coefficient

• Then undo the constant

• Then undo the coefficient

What is pictured?

• complementary angles

• supplementary angles

What is pictured?

• complementary angles

• supplementary angles

What flag is this

• North Korea
• Afghanistan
• South Korea
• India