Answered

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Determine B pls quickly!

Determine B Pls Quickly class=

Sagot :

jasanyasosa

Answer:

5cm

Step-by-step explanation:

LammettHash

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 + b

b = (6 cm) • (7 cm) / (4 cm) - 6 cm

b = 9/2 cm = 4.5 cm

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