Refer to our Texas Go Math Grade 4 Answer Key Pdf to score good marks in the exams. Test yourself by practicing the problems from Texas Go Math Grade 4 Module 14 Assessment Answer Key.

## Texas Go Math Grade 4 Module 14 Assessment Answer Key

**Vocabulary**

clockwise

counterclockwise

degree (°)

protractor

**Choose the best term from the box.**

Question 1.

The unit used to measure an angle is called a _________.

Answer:

The unit used to measure an angle is called a degree.

Question 2.

________________ is the opposite of the direction in which the hands of a clock move.

Answer:

Counterclockwise is the opposite of the direction in which the hands of a clock move.

Question 3.

A ______________ is a tool for measuring the size of an angle.

Answer:

A protractor is a tool for measuring the size of an angle.

**Concepts and Skills**

**Look at the shaded part of the circle. Tell what fraction of the circle the angle cuts out.**

Question 4.

Answer:

\(\frac{1}{2}\).

Explanation:

The fraction of the circle the angle cuts out is \(\frac{1}{2}\).

Question 5.

Answer:

\(\frac{1}{4}\).

Explanation:

The fraction of the circle the angle cuts out is \(\frac{1}{4}\).

Question 6.

Answer:

\(\frac{1}{2}\).

Explanation:

The fraction of the circle the angle cuts out is \(\frac{1}{2}\).

**Tell the measure of the angle in degrees.**

Question 7.

Answer:

10 degrees.

Explanation:

The measure of the angle in degrees is 10 degrees.

Question 8.

Answer:

30 degrees.

Explanation:

The measure of the angle in degrees is \(\frac{1}{12}\)×\(\frac{30}{30}\) which is 30 degrees.

**Use a protractor to draw the angle.**

Question 9.

75°

Answer:

The 75 degrees angle with the protractor is

Question 10.

127°

Answer:

The 127° degrees angle with the protractor is

**Fill in the bubble completely to show your answer.**

Question 11.

What is the measure of the unknown angle in the figure?

(A) 25°

(B) 115°

(C) 125°

(D) 180°

Answer:

B.

Explanation:

The measure of the unknown angle in the figure is X = 180 – 65 which is 115 degrees.

Question 12.

Which equation can you use to find the m∠ WRT?

(A) 84° + 69° = __________

(B) 84°- 69° = __________

(C) 84° × 69° = __________

(D) 180° – 153° = __________

Answer:

84° + 69° = 153°.

Explanation:

The equation is

m<WRT = 84° + 69° which is 153°.

Question 13.

Which best describes the m∠ CBT? Use a protractor to help you.

(A) acute; 30°

(B) acute; 60°

(C) obtuse; 118°

(D) obtuse; 80°

Answer:

D.

Explanation:

The angle m∠ CBT is obtuse 80°.

Question 14.

How many degrees are in an angle that cuts \(\frac{1}{360}\) out of a circle?

(A) 0°

(B) 90°

(C) 1°

(D) 45°

Answer:

C.

Explanation:

The angle that cuts \(\frac{1}{360}\) out of a circle is 1°