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Family Kitchen: Weekly Order Angle Audit worksheet preview

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Family Kitchen: Weekly Order Angle Audit

Reason about triangle sums, exterior angles, parallel lines, and AA similarity in a family restaurant's weekly order plans.

Grade 8MathInteractive · Printable

Aligned to8.G.A.5

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What’s included

  • Single worksheet
  • Auto-graded online
  • 1 Common Core standard
  • Printable answer key
  • 14 questions
  • Classroom-ready

Details

Format
Interactive · Printable
Grade
Grade 8
Subject
Math
Question types
Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

  • Students justify triangle angle sums and exterior-angle relationships.
  • Students use parallel-line angle relationships to evaluate geometric claims.
  • Students justify triangle similarity using two pairs of equal angles.

How to use

Use after introducing triangle and parallel-line angle relationships. Ask students to annotate each relationship before answering, then discuss the final argument.

Curriculum

Common Core standard covered

8.G.A.5

Give informal arguments about triangle angle sums, exterior angles, angles from parallel lines cut by a transversal, and angle-angle similarity.

Preview

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Name Date

Family Kitchen: Weekly Order Angle Audit

Use angle relationships to justify kitchen layout and packaging decisions.

Weekly Order Packaging

Use the stated angle relationships. All angle measures are in degrees.

1.
For Monday's orders, Lena designs a triangular divider for a food box. One interior angle measures 28°. A second interior angle is three times that measure.

What is the measure of the third interior angle?  °

2.
The kitchen tests triangular package designs. Select every description that is possible.

One interior angle is right, and another is obtuse.One interior angle is 112°, and the other two are equal.Two interior angles total 94°, and the third is 86°.Two interior angles total 180°, and the third is acute.

3.
Omar checks a triangular order label with interior angles of 37°, 63°, and 80°. Which argument correctly verifies the label's angle sum?
  • A. The angles work because all three angles have different measures.
  • B. The angles work because the largest angle is less than 90°.
  • C. The angles work because the two smaller angles total 100°.
  • D. The angles work because 37° + 63° + 80° equals a straight angle.

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