Angles on a Straight Line Worksheets

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Spruce up practice with our angles on a straight line worksheets pdfs packed full of exercises to prepare 4th grade and 5th grade children to find the missing or unknown angles on a straight line with utmost accuracy. Since all the angles lie on a straight line and are adjacent, the angle addition postulate comes into play. Add the known angles and subtract the sum from 180° to find the measure of the indicated angle.

These free worksheets cater to the students of grade 4, grade 5, grade 6, and grade 7.

Linear Pairs of Angles Worksheets

Practice our extensive collection of printable worksheets on linear pairs of angles to acquire profound practical knowledge of this concept. Get 6th grade and 7th grade learners working in full sail to know this topic inside out.

Linear Pairs of Angles Worksheets

Finding the Unknown Angle

This pdf exercise tasks wannabe mathletes in 4th grade with finding the measure of an angle that shares a common vertex with the other angles on a straight line. Remember, angles on a straight line add to 180 degrees.

Finding the Unknown Angle

Finding the Value of X

Kids in 5th grade will finish strong with this angles on a straight line pdf set, where the task is to find x. To find the value of x for each given figure, sum up the angles on a straight line and equate them to 180°.

Finding the Value of X

Identifying the Value of X to Find the Unknown Angles

Buckle up to answer this challenging exercise, in which math enthusiasts find the value of x and figure out the unknown angles as well! Use the given equation to complete the task in a jiffy.

Identifying the Value of X to Find the Unknown Angles