To solve for x , Fabian starts with the equation 10x + 15 = 14x – 13. Which statement below correctly describes Fabian’s mistake?

Fabian started with the correct equation.

Fabian should have started with the equation (4x + 13) + (6x + 2) + (14x – 13) = 180.

Fabian should have started with the equation (6x + 2) – (4x + 13) = (14x – 13)

Fabian should have started with the equation (4x – 13) – (6x + 2) = (14x – 13)

Are the triangles congruent? Use rigid motions to explain your answer

Yes. ΔMNP can be reflected across the y-axis to map onto ΔJKL. Because reflections are rigid motions, ΔMNP ≅ ΔJKL.

Yes. ΔMNP can be reflected across the x-axis to map onto ΔJKL. Because reflections are rigid motions, ΔMNP ≅ ΔJKL.

Yes. ΔMNP can be rotated 270° counterclockwise about the origin to map onto ΔJKL. Because rotations are rigid motions, ΔMNP ≅ ΔJKL.

No. There is no sequence of rigid motions that will map ΔMNP onto ΔJKL.

Are the quadrilaterals congruent? Use rigid motions to explain your answer.

No. There is no sequence of rigid motions that will map JKLM onto PQRS.

Yes. JKLM can be reflected across the x-axis to map onto PQRS. Because reflections are rigid motions, JKLM ≅ PQRS.

Yes. JKLM can be rotated 270° counterclockwise about the origin to map onto PQRS. Because rotations are rigid motions, JKLM ≅ PQRS.

Yes. JKLM can be reflected across the y-axis to map onto PQRS. Because reflections are rigid motions, JKLM ≅ PQRS.

HW 2-2

Authored by Thomas Horrobin

Mathematics

9th - 12th Grade

CCSS covered

Used 37+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Is ΔABC equilateral, isosceles, or scalene?

Equilateral

Isosceles

Scalene

Tags

CCSS.4.G.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Which description below best describes ΔABC?

Acute Triangle

Right Triangle

Obtuse Triangle

Equiangular (Acute) Triangle

Tags

CCSS.4.G.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Is ΔMNO equilateral, isosceles, or scalene?

Equilateral

Isosceles

Scalene

Tags

CCSS.4.G.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Which description below best describes ΔMNO?

Acute Triangle

Right Triangle

Obtuse Triangle

Equiangular (Acute) Triangle

Tags

CCSS.4.G.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The measure of one of the acute angles in a right triangle is 39°. What is the measure of the other acute angle?

39°

90°

78°

51°

Tags

CCSS.8.G.A.5

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The measure of two of the interior angles of a triangle is 47° and 75°. What is the measure of the 3^rd interior angle?

58°

75°

47°

28°

Tags

CCSS.8.G.A.5

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Jay wants to solve for x. Which equation should he use to correctly get the value of x?

(20x – 3) + (11x – 1) + 151 = 180

20x – 3 = 11x – 1

(20x – 3) + (11x – 1) = 151

(20x – 3) + (11x – 1) = 29

Tags

CCSS.7.G.B.5

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HW 2-2

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Is ΔABC equilateral, isosceles, or scalene?

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Which description below best describes ΔABC?

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Is ΔMNO equilateral, isosceles, or scalene?

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Which description below best describes ΔMNO?

The measure of one of the acute angles in a right triangle is 39°. What is the measure of the other acute angle?

The measure of two of the interior angles of a triangle is 47° and 75°. What is the measure of the 3^rd interior angle?

Jay wants to solve for x. Which equation should he use to correctly get the value of x?

What is the value of x?

To solve for x, Fabian starts with the equation 10x + 15 = 14x – 13. Which statement below correctly describes Fabian’s mistake?

Joanna does not remember the Exterior Angle Theorem. However, she does remember the Triangle Angle Sum Theorem. Which expression should Joanna write in the blank to complete the equation?

(4x + 13) + (6x + 2) + ___________ = 180°

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

HW 2-2

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Is ΔABC equilateral, isosceles, or scalene?

In ΔABC, AB = 12 cm, BC = 7 cm, and AC = 10 cm. Which description below best describes ΔABC?

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Is ΔMNO equilateral, isosceles, or scalene?

In ΔMNO, m∠M = 45°, m∠N = 45°, and m∠O = 90°. Which description below best describes ΔMNO?

The measure of one of the acute angles in a right triangle is 39°. What is the measure of the other acute angle?

The measure of two of the interior angles of a triangle is 47° and 75°. What is the measure of the 3rd interior angle?

Jay wants to solve for x. Which equation should he use to correctly get the value of x?

What is the value of x?

To solve for x, Fabian starts with the equation 10x + 15 = 14x – 13. Which statement below correctly describes Fabian’s mistake?

Joanna does not remember the Exterior Angle Theorem. However, she does remember the Triangle Angle Sum Theorem. Which expression should Joanna write in the blank to complete the equation?(4x + 13) + (6x + 2) + ___________ = 180°

Access all questions and much more by creating a free account

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

The measure of two of the interior angles of a triangle is 47° and 75°. What is the measure of the 3^rd interior angle?

Joanna does not remember the Exterior Angle Theorem. However, she does remember the Triangle Angle Sum Theorem. Which expression should Joanna write in the blank to complete the equation?

(4x + 13) + (6x + 2) + ___________ = 180°