Problem

QUESTION 4
The two triangles below are similar. Find the missing length(s).
\( x=21 \)
\( x=7 \)
\( x=28 \)
\( x=12 \)

Answer

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Hide Steps

Answer

\( x_1 = \frac{12}{4} \)

Steps

Step 1 ：\( x_1 = \frac{x_2}{x_3} \times x_4 \)

Step 2 ：\( x_1 = \frac{7}{28} \times 12 \)

Step 3 ：\( x_1 = \frac{12}{4} \)

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