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Choose appropriate tools such as geometry software or a compass, straightedge, and protractor to inscribe quadrilateral GHU in a circle as shown in the figure. Then measure the angle at each vertex. V suppose mZHU is 67º and that memas. Can you find the measures of all the angles? Complete the explanation. Also, ZH HU and HG (select)y supplementary, so mZHGJ (select)- 67° = (select) and my are select) and have equal measures, so each angle must measure be found. (180°)- select the measures of all angles (select)

Choose appropriate tools such as geometry software or a compass, straightedge, and-example-1
User Duxa
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1 Answer

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The sum of opposite angle of quadilateral is 180 degree. So,


\angle IHJ+\angle IJG=180

And


\angle HGJ+\angle HIJ=180

The sum of angle HIJ and angle HGJ is 180 degree. So there angle are supplementary angle.

Determine the measure of angle HGJ.


\begin{gathered} \angle HGJ+67=180 \\ \angle HGJ=180-67 \\ =113 \end{gathered}

The sum of angle H and angle J is also 180 so angle H and angle are supplemntary angles.

Determine the measure of angle H or angle J (Both are equal).


\begin{gathered} \angle H+\angle J=180 \\ \angle H+\angle H=180 \\ \angle H=(1)/(2)\cdot180 \\ =90 \end{gathered}

The measure of angle H and angle J is 90 degree.

So all four angles measure can be found.

Answer:

Blank 1: are

Blank 2: 180

Blank 3: 113

Blank 4: Supplementary

Blank5: 1/2(180) = 90

Blank 6: Yes

Blank 7: Can

User Chaohuang
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