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For the trapezoid shown, the ratio m∠A:m∠C is2:1. Write and solve an equation to find the value of x.

Short Answer

Expert verified

The value of x is60°.

Step by step solution

01

Step 1. Given Information.

The ratio m∠A:m∠C is2:1. The figure is shown below.

02

Step 2. Concept Used.

Angle sum property of quadrilateral.

∠A+∠B+∠C+∠D=360°

03

Step 3. Calculation.

From the figure,

∠D=∠C∠A=∠B

∠C=x°

And,

∠A:∠C=2:1

So,

∠A=2x°∠B=2x°

According to angle sum properties of quadrilateral,

∠A+∠B+∠D+∠C=360°

Substituting the value of angles,

2x+2x+x+x=360°6x=360°x=60°

04

Step 4. Conclusion.

The value of x is60°.

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