Y5T3: CALCULATING MISSING ANGLES ON A STRAIGHT LINE

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A straight line measures:

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If you know one of the angles on a straight line, how do you find the missing angle?

HINT: There are two ways to find the missing angle.

• Subtract the known angle from 180°.

• Use a calculator.

• Add 180° to the given angle.

• Find the angle that makes the total 180°.

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Can a straight line have more than two angles?

• No, only 2.

• Yes, but they must all add up to 180°.

• Yes, and they can add up to any number.

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Calculate the missing angle.

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Calculate the missing angle.

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Calculate the missing angle.

_{Choose the correct multiple-choice option.}

Calculate the missing angle.

_{Choose the correct multiple-choice option.}

Calculate the missing angle.

_{Choose the correct multiple-choice option.}

Calculate the missing angle.

_{Choose the correct multiple-choice option.}

Calculate the missing angle.