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6-8 Grade 7 Unit 7 Lesson 10

Gradeband

K-5 Math •6-8 Math 9-12 Math

Course

Grade 6 •Grade 7 Grade 8

Unit

Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 •Unit 7 Unit 8 Unit 9

Lesson

Lesson 1 Lesson 2 Lesson 3 Lesson 4 Lesson 5 Lesson 6 Lesson 7 Lesson 8 Lesson 9 •Lesson 10 Lesson 11 Lesson 12 Lesson 13 Lesson 14 Lesson 15 Lesson 16 Lesson 17

K-5
6-8
9-12

Grade 6
Grade 7
Grade 8

Accelerated 6
Accelerated 7

Unit 1
Unit 2
Unit 3
Unit 4
Unit 5
Unit 6
Unit 7
Unit 8
Unit 9

Lesson 1
Lesson 2
Lesson 3
Lesson 4
Lesson 5
Lesson 6
Lesson 7
Lesson 8
Lesson 9
Lesson 10
Lesson 11
Lesson 12
Lesson 13
Lesson 14
Lesson 15
Lesson 16
Lesson 17

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Unit 7, Lesson 10

Drawing Triangles (Part 2)

Grade 7

Practice

Problem 1
Student Task Statement
A triangle has sides of length 7 cm, 4 cm, and 5 cm. How many unique triangles can be drawn that fit that description? Explain or show your reasoning.

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Problem 2

Lesson 10 Resources

Student Materials

Student Task Statement

A triangle has one side that is 5 units long and an adjacent angle that measures . The two other angles in the triangle measure and . Complete the two diagrams to create two different triangles with these measurements.

Two images, each a segment with side 5 and a dotted line rising at a 25 degree angle from the segment.

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Problem 3

Student Task Statement

Is it possible to make a triangle that has angles measuring 90 degrees, 30 degrees, and 100 degrees? If so, draw an example. If not, explain your reasoning.

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Problem 4

ForLesson 2: Adjacent Angles

Student Task Statement

Segments , , and intersect at point . Angle is a right angle. Identify a pair of angles that are complementary.

Segment C D, segment A, B, segment F G intersect at point E. Clockwise, the points are C, F, B, D, G, A. Angle F E C is a right angle.

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Problem 5

ForLesson 15: Solving Equations with Rational Numbers

Student Task Statement

Match each equation to a step that will help solve the equation for .

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Problem 6

ForLesson 8: Percent Increase and Decrease with Equations

Student Task Statement

If you deposit $300 in an account with a 6% interest rate, how much will be in your account after 1 year?
If you leave this money in the account, how much will be in your account after 2 years?

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Add to each side.
Add to each side.
Add to each side.
Add to each side.
Multiply each side by 3.
Multiply each side by .
Multiply each side by .
Multiply each side by .