Scale Drawing
1/5 = 4/n. n=?
N=20
All three angles in a triangle add up to what?
180 degrees
Vertical Angles are what?
Equal to each other
True or False:
If one vertical angle is 65 degrees, the other angle is 115 degrees.
False: the other angle is 65 degrees
What is the Absolute Value -65
65
1/7 = n/70. n=?
n=10
To form a triangle, the two smaller sides add up to be what to the bigger side?
Greater then the bigger side.
Complementary Angles:
Angle 1 is 40 degrees
Angle 2 is ___ Degrees
50 degrees
What is a scale drawing?
a drawing that represents a real object or place using a scale.
What does an open circle tell you about what inequality sign to use?
Less then or greater then sign.
1/n = 12/72. n=?
n= 6
In a triangle, Angle 1 is 34 degrees and angle 2 is 66 degrees. What is the third angle?
80 degrees.
Supplementary Angles.
Angle 1 is 112 degrees
Angle 2 is ____ degrees
68 degrees
What is the difference between Complementary Angles and Supplementary Angles?
Complementary is 90 degrees and supplementary is 180 degrees
3x - 12 = 9
x=?
X=7
Chad measured a house and made a scale drawing. He used 1mm:3m. The actual width of the front patio is 18 meters. How long is it in the drawing?
6mm
True or False: Side Lengths 12in, 18in, and 30in makes a triangle.
False: 30 is not greater then 30
Two streets represented by straight lines, intersect at point a. One Angle formed by these streets measures at 67 degrees. What is the vertical angle to that given angle?
67 degrees
What is a scale factor?
The number used to multiply or divide measurements.
Graph:
X <= 17
Closed circle on 17 shaded to the left
Jenna measured a pool and made a scale drawing. The pool is 20 centimeters long in the drawing and 60 meters in real life. What scale did Jenna use?
1cm:?m
3 meters
Pick 3 sides to make a triangle out of the 4 given.
40m, 26m, 67m, 65m
26m, 40m, and 65m
Two streets represented by straight lines, intersect at point a. One Angle formed by these streets measures at 67 degrees. What is the supplemental angle to that given angle?
113 degrees
What are equivalent ratios?
Ratios with the same proportion using the same scale factor as each ratio.
2(x+8)-3(x-2)=17
x=?
X=5