Determine B pls quickly!

2 answers
Question:

Determine B pls quickly!

Answers

Answer:5cmStep-by-step explanation:

Assuming the two horizontal legs are parallel, the smaller triangle is similar to the larger one, so that corresponding sides occur in a fixed ratio. In particular, you have(6 cm) / (4 cm) = (6 cm + b) / (7 cm)Solve for b :(6 cm) • (7 cm) / (4 cm) = 6 cm + bb = (6 cm) • (7 cm) / (4 cm) - 6 cmb = 9/2 cm = 4.5 cm

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