2 years ago

Math help please its just one question

Mathematics

1 answer:

vovikov84 [41]2 years ago

3 0

Use the law of sines:

Sin(angle) = Opposite Leg / Hypotenuse

Sin(30) = 14 / x

x = 14/sin(30)

x = 28

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$\large\underline{\sf{Solution-}}$

Given that,

A trapezium ABCD in which AB || CD such that

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Now,

$\rm In \: \triangle \: AOB \: and \: \triangle \: COD$

$\rm \: \angle \: AOB \: and \: \angle \: COD \: \: \{vertically \: opposite \: angles \}$

$\rm \: \angle \:ABO \: and \: \angle \: CDO \: \: \{alternate \: interior \: angles \}$

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$\rm \longmapsto\: {x}^{2} - x + 4x - 4 = {x}^{2} + 1 + 2x$

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