3 years ago

Can someone help me on this math problem.

1 answer:

4 0

In the rhombus, the diagonals are perpendicular.

We know, the sum of the measures of the triangle is equal 180°.

Therefore we have the equation:

$(2x-15)+3x+90=180$

$2x-15+3x+90=180$ <em>combine like terms</em>

$(2x+3x)+(-15+90)=180$

$5x+75=180$ <em>subtract 75 from both sides</em>

$5x=105$ <em>divide both sides by 5</em>

$\boxed{x=21}$

<h3>Answer: x = 21°</h3>

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