3 years ago

Please help me find the value of x

Mathematics

1 answer:

Aleonysh [2.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

$(tangent)^{2}$ = AC × CB

$12^{2}$ = ( x + 9 ) 9

144 = 9x + 81

9x = 144 - 81

9x = 63

x = 63 ÷ 9

x = 7

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