Help a broooo outttt

Mathematics

1 answer:

fiasKO [112]3 years ago

7 0

Answer:

Step-by-step explanation:

Let the missing length be represented as "x".

Based on the angle bisector theorem, we have the following equation:

x/21 = 30/15

x/21 = 2/1

Cross multiply

x*1 = 2*21

x = 42

Missing length = 42

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