Geometry Basics
A pair of adjacent angles that add to 180 degrees.
What are supplementary angles?
The length of a leg if a right triangle's other two sides measure 12cm and 18 cm? Round to the nearest hundreth.
13.42
two parts: a) the EXACT diameter of a circle if the circle's circumference is 75 pi inches. b) the area of a circle if the circle's diameter is 26 cm
a) what is 75 inches ? b) what 169 pi sq. cm. ? ( pi times radius squared when r = 26/2)
Find the volume of a square pyramid. The base is 4 inches long and the height is 12 inches.
64 cubic inches
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?
When triangle NED is congruent to triangle RWO, this is the angle that corresponds to angle WRO.
What is angle END?
Two parts: a) The location of the vertex of any central angle in a circle? b) The measure of the arc intercepted by a central angle that measures 76 degrees.
a) what is the center of the circle? b) what is 76 degrees?
When triangle NED is congruent to triangle RWO, this is the angle that corresponds to angle WRO
What is angle END?
Angles that are across from each other and congruent.
What are vertical angles?
Look to the board for this question. Round to the nearest hundreth.
59.24 degrees
two parts: a) how you know an angle is an inscribed angle (draw a picture) b) the measure of an inscribed angle that intercepts an arc that measures 30 degrees
a) What is the angle intersects a circle in two point snd the angle's vertex is ON the circle (draw a picture) b) what is 15 degrees (the inscribed angle measures half of the measure of the arc)
A triangle has side lengths of 6, 9 and 16. What type of triangle is it?
Obtuse triangle
Which of the following angles are supplementary?
- Corresponding Angles
- Vertical Angles
- Same-Side Interior Angles
- Alternate Interior Angles
What are Same-Side Interior Angles?
Find 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
Find the center and the radius of a the circle.
(x-3)2+(y+5)2=25
C: (3, -5)
r: 5
Find the area of a sector with a central angle of 48 degrees and a radius of 3 cm. Use pi and round to the nearest hundreth.
3.77 square cm
What does SOH CAH TOA stand for?
Sinx = Opp/Hyp
Cosx = Adj/Hyp
Tanx = Opp/Adj
Look to the board for this question. Round to the nearest foot.
550.54 ft
Find the center and the radius of the circle.
x2 - 4x +y2 - 12 = 0
C: (-2, 0)
r: 4
What is the correct term?
A line that cuts something in half
A bisector