lines, angles, and symmetry OH MY

A rectangle and pentagon are shown. Choose the correct answer from the drop-down menus to complete the statements. The rectangle has at least one set of ​​ (a)   . The pentagon has ​ (b)  

• parallel and perpendicular sides
• only obtuse angles
• perpendicular sides
• some obtuse and some acute angles
• some obtuse and some right angles
• parallel sides

Rhaziel sorted a set of picture images into two labeled sets. She sorted three of the images incorrectly. Which images did Rhaziel sort incorrectly? Choose THREE images that Rhaziel sorted incorrectly by clicking the appropriate boxes.

Which of the following is an obtuse triangle, and why?

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Select each protractor below that shows an angle measuring 135º.

Choose ALL correct answers by clicking the appropriate boxes. There will be more than one answer.

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Caleb is using his protractor to measure angle z. What is the measure of angle z?

Mathematical Equivalence

ON

Abigail's teacher wants her to draw an angle that is greater than 70° but less than 90°. Which protractors show an angle that Abigail can draw?

Select two correct answers.

A rectangle is shown below. ​Choose the correct answer from each drop-down menu to complete the statement. The measure of angle Z is ​ (a)   because the angle inside of the rectangle is a/an ​ (b)   that measures ​ (c)  

• right angle
• acute angle
• obtuse angle

Which letter has approximately 45° angles at two corners?

• S

• E

• N

• P

In the diagram below, ABCD is a quadrilateral. A. What is the measure of angle ADC?

Mathematical Equivalence

ON

In the diagram below, ABCD is a quadrilateral. A. What is the measure of angle ADE?

Mathematical Equivalence

OFF