3rd Periodic Test Flashcards

1
Q

a polygon with four sides and four vertices

A

Quadrilateral

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2
Q

The sum of the measures of the interior angles of a quadrilateral is ______

A

360

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3
Q

a quadrilateral in which opposite sides are parallel.

A

parallelogram

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4
Q

A polygon with four sides

A

Quadrilateral

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5
Q

Two pairs of parallel sides

A

Parallelogram

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6
Q
  • All four angles are equal
  • Opposite sides are equal
  • A parallelogram with four right sides
A

Rectangle

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7
Q

Has four equal sides and oblique angles

A

Rhombus

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8
Q

All four sides and angles are equal

A

Square

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9
Q

One pair of parallel sides

A

Trapezoid

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10
Q

Non-parallel sides are equal

A

Isosceles Trapezoid

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11
Q

No parallel sides

A

Kite

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12
Q

A round plane figure whose boundary consists of points equidistant from a fixed point.

A

Circle

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13
Q

the fixed point from which all points on the boundary of the circle are equidistant.

A

Center

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14
Q

The distance from the center of a circle to the outside.

A

Radius

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15
Q

The distance across the circle going through the center.

It is twice the length of the radius

A

Diameter

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16
Q

A line segment that connects any two points on the circumference

A

Chord

16
Q

The distance once around the circle.

A

Circumference

17
Q

curved portion of a circle’s circumference

A

Arc

18
Q

A line that goes through/intersects the circle at two points.

A

Secant

19
Q

A straight line that touches the circle at a single point only.

A

Tangent

20
Q

angle formed by two radii

A

central angle

21
Q

an arc that measures less than 180 degrees. It spans less than half of the circle

A

Minor Arc

22
Q
  • a special arc that measures exactly 180 degrees.
  • It is half of the circle and is formed by a diameter
A

Semicircle

23
Q

an arc that measures greater than 180 degrees. It spans more than half of the circle

A

Major Arc

24
Q

distance around its boundary or perimeter.

A

Circumference

25
Q

A tangent to a circle is _______________ to the radius at the point of tangency.

A

Perpendicular

26
Q

Two circles are always ________ to each other

A

Similar

27
Q

A secant contains a ______

A

Chord

28
Q

A circle is ___ a polygon

A

Not

29
Q

Two angles are called _____________ when their measures add to 90 DEGREES.

A

complementary

30
Q

Two angles are called _____________ when their measures add up to 180 DEGREES.

A

supplementary

31
Q

formula for circumference

A

2πr or πd

32
Q

value of pi (π)

A

3.14

33
Q

formula for circumference when diameter is given

A

πd / (3.14)(d)

34
Q

formula for circumference when radius is given

A

2πr / 2(3.14)(r)

35
Q

formula for diameter

A

c / π

36
Q

formula for radius

A

c / 2π