Geometry Basics
A pair of adjacent supplementary angles
What is a linear pair?
What is the length of a leg of a right triangle if the other two sides measure 12cm and 18 cm? Round your answer to the nearest hundredth.
13.42 cm
What is the area of a circle if the circle's diameter is 26 cm?
530.66 cm2
A parallelogram with four right angles
What is either a square or a rectangle?
When triangle NED is congruent to triangle RWO, this is the angle that corresponds to angle R
angle N
a) Lines that lie in the same plane but never intersect b) Lines that intersect and form a 90 degree angle
a) what are parallel lines? b) what are perpendicular lines?
A type of triangle with no congruent sides
scalene
What is the measure of the arc intercepted by a central angle that measures 76 degrees?
76 degrees
a quadrilateral that is both equiangular and equilateral
What is a square?
What transformation does not create congruent figures?
dilation
A figure in which all points are equidistant from the center
circle
Will the lengths of 7.3 cm, 5.02 cm and 2.1 will form a triangle?
No, they will NOT form a triangle because the sum of the 2 shortest sides is less than the third side.
What is the measure of an inscribed angle that intercepts an arc that measures 30 degrees?
15 degrees (the inscribed angle measures half of the measure of the arc)
What is the sum of the measures of a 15-gon polygon?
2340 degrees
What is the geometric mean of 4 & 16?
8
The slope of a line perpendicular to a line with slope of 5/3
What is a line with slope of -3/5 (slopes are opposite and reciprocals of each other)
The measure of a base angle in an isosceles triangle whose vertex angle is 37.5 degrees
What is 71.25 degrees? (180-37.5)/2
If a line is tangent to a circle, this is the measure of the angle at the point of tangency formed with the radius of the circle at that point. (Draw a picture of the angle too)
90 degrees
What is the measure of one interior angle of a 13-gon?
152 degrees
What is the new ordered pair when (3, -2) is reflected over the x axis?
(3, 2)
(2, 0)
Classify a triangle with side lengths of 5.4 cm, 7.2 cm, and 9 cm.
What is the area of a circle whose circumference is 31.4 inches?
78.5 inches2
What is a regular polygon?
a polygon with congruent sides and angles
If the angle of elevation from the bottom of a slide to the top of a slide is 33 degrees, and the slide is 8 ft, what is the height of the slide? Round your answer to the nearest hundredth.
4.36 feet