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Solve Lesson 33 Page 92 SBT Math 10 – Kite>

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Topic

For quadrilateral ABCD is a parallelogram. Which of the following statements is correct?

A. \(\overrightarrow {BA} + \overrightarrow {DA} = \overrightarrow {CA} \)

B. \(\overrightarrow {AB} + \overrightarrow {BC} = \overrightarrow {AD} \)

C. \(\overrightarrow {AB} + \overrightarrow {AD} = \overrightarrow {CA} \)

D. \(\overrightarrow {AB} + \overrightarrow {BC} = – \overrightarrow {AC} \)

Solution method – See details

Use the parallelogram rule to find the correct sentence

Detailed explanation

Consider answer A: \(\overrightarrow {BA} + \overrightarrow {DA} = – \overrightarrow {AB} – \overrightarrow {AD} = – (\overrightarrow {AB} + \overrightarrow {AD} ) = – \overrightarrow {AC} = \overrightarrow {CA} \)

Choose A

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