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3 years ago

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Mathematics

1 answer:

aev [14]3 years ago

3 0

Answer:

a = 16

Step-by-step explanation:

The altitude YB is at right angles to the base XZ , then

∠ YBZ = 90° , so

6a - 6 = 90 ( add 6 to both sides )

6a = 96 ( divide both sides by 6 )

a = 16

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2 years ago

*image is attached above*

image is attached above