TEKS.MATH.9-12.III.D.1

How many degrees are in the missing angle?

• 60°
• 114°
• 70°
• 360°

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TEKS.MATH.9-12.III.D.1

All squares are rectangles

• True
• False

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TEKS.MATH.9-12.III.D.1

Complete the statement, the circumcenter of a triangle is equidistant from the ___ of the triangle.

• vertices
• sides
• center
• medsegment

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TEKS.MATH.9-12.III.D.1

Which of the following are NOT true about diagonals of a rhombus?

• they are perpendicular
• they bisect each other
• they are congruent

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TEKS.MATH.9-12.III.D.1

In a circle (or congruent circles), chords that are the same distance from the center:

• are similar
• have the same name
• are congruent to each other
• are walking dead

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TEKS.MATH.9-12.III.D.1

In a parallelogram, opposite angles are ________.

• congruent
• supplementary
• consecutive
• parallel

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TEKS.MATH.9-12.III.D.1

What is the formula for the sum of interior angles in a polygon?

• 180(n−2)
• 180(n−2)÷n
• 360
• 360/n

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TEKS.MATH.9-12.III.D.1

True or False? The exterior angle of a cyclic quad is equal to the sum of the interior opposite angles.

• True

• False

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TEKS.MATH.9-12.III.D.1

In the diagram given DCBE is a cyclic quadrilateral in the circle with centre O
Given:  $angle\ D\ is\ 105\degree$  
 $angle\ B1\ is\ 30\degree$  
What is the size of angle O1?

•  $90\degree$  

•  $210\degree$  

•  $135\degree$  

•  $75\degree$  

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TEKS.MATH.9-12.III.D.1

If QN bisects ∠PQR and N is the midpoint of PR. classify ∆PQR by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

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TEKS.MATH.9-12.III.D.1