WGU D128 EXAM WITH COMPLETE SOLUTIONS
100% VERIFIED!!
Pythagoras Theorum
a2 + b2 = c2
Circle circumference
C=2πr
Circle Area
πr²
Central angle/360 =
arc length/2pir = area of sector/pir2
M(inscribed angle) =
1/2 intercepted arc
Distance
Sq root (x2-x1)2 + (y2-y1)2
Scale factor
New length/old length
Complimentary angles
,two angles that add up to 90 degrees
rectangle
a quadrilateral with four right angles, equal opposite equal sides and opposite parallel
sides
Hypotenuse
the largest side of a right triangle opposite the right angle.
reflex angles
Angles whose measures are greater than 180 degrees and less than 360 degrees
Triangle Inequality Theorem
The sum of the lengths of any two sides of a triangle is greater than the length of the
third side.
Trapezoid
A quadrilateral with exactly one pair of parallel sides
a kite
a quadrilateral with two pairs of adjacent sides congruent and one set of equal opposite
angles
legs
right triangle two sides form a right angle
equilateral triangle three sides all equal in length and three equal angles
tangent line in the plane of a circle that intersects the circle in exactly one point.
congruent having the same size and shape
, inscribed angles angle with vertex on the circle
ray a part of a line with one endpoint that continues without end in one direction
coordinate plane
Plane divided into four regions by a horizontal line called the x-axis and a vertical line
called the y-axis.
regular polygon
Polygon with all sides and all angles equal.
polygon
A two-dimensional shape with many straight sides.
sector
Part of circle resembling slice of pie. A sector is bounded by 2 radii and an arc of the
circle
scalene triangle
Triangle with no congruent sides or angless
quadrilateral
a four-sided polygon
isoscoles trapezoid
A quadrilateral with one set of parallel opposite sides, and the other pair of equal
opposite sides
Parallellogram
a quadrilateral in which opposite sides are parallel and congruent
100% VERIFIED!!
Pythagoras Theorum
a2 + b2 = c2
Circle circumference
C=2πr
Circle Area
πr²
Central angle/360 =
arc length/2pir = area of sector/pir2
M(inscribed angle) =
1/2 intercepted arc
Distance
Sq root (x2-x1)2 + (y2-y1)2
Scale factor
New length/old length
Complimentary angles
,two angles that add up to 90 degrees
rectangle
a quadrilateral with four right angles, equal opposite equal sides and opposite parallel
sides
Hypotenuse
the largest side of a right triangle opposite the right angle.
reflex angles
Angles whose measures are greater than 180 degrees and less than 360 degrees
Triangle Inequality Theorem
The sum of the lengths of any two sides of a triangle is greater than the length of the
third side.
Trapezoid
A quadrilateral with exactly one pair of parallel sides
a kite
a quadrilateral with two pairs of adjacent sides congruent and one set of equal opposite
angles
legs
right triangle two sides form a right angle
equilateral triangle three sides all equal in length and three equal angles
tangent line in the plane of a circle that intersects the circle in exactly one point.
congruent having the same size and shape
, inscribed angles angle with vertex on the circle
ray a part of a line with one endpoint that continues without end in one direction
coordinate plane
Plane divided into four regions by a horizontal line called the x-axis and a vertical line
called the y-axis.
regular polygon
Polygon with all sides and all angles equal.
polygon
A two-dimensional shape with many straight sides.
sector
Part of circle resembling slice of pie. A sector is bounded by 2 radii and an arc of the
circle
scalene triangle
Triangle with no congruent sides or angless
quadrilateral
a four-sided polygon
isoscoles trapezoid
A quadrilateral with one set of parallel opposite sides, and the other pair of equal
opposite sides
Parallellogram
a quadrilateral in which opposite sides are parallel and congruent
