Is this angle acute, obtuse, right or straight?
Obtuse
Choose A or B and classify the triangle by it's sides and angles.
A. Equilangular-Equilateral
B. Right-Scalene
If you used the sides 4,6 and 7, would you be able to make a triangle?
Find the missing angle using algebra
60 degrees
What is the circumference?
C=4πm
Are these angles complementary, supplementary or vertical?
Complementary
What type of triangle should this be classified as?
Acute, equiangular, and equilateral triangle
Could a=3?
No
Find the missing angle using algebra
34 degrees
What is the area of the circle?
A=16πcm
Name 2 pairs of angles that are supplementary.
7,8
6,5
3,4
2,1
Pick 2 triangles to classify by their angles AND sides.
A. Obtuse-Scalene
B.Right-Scalene
C.Obtuse-Scalene
D.Acute-Scalene
If I have three side lengths, 4.7, 5.3, and 1.24, does this make a triangle? why?
Yes, because the two smallest sides added up, are bigger than the third side
Find x, and find each angle
x=32°
4x+4= 132°
x= 32°
16= 16°
What is the circumference?
6.2π mm
Angle AEC is ________ to angle DEB
They are vertical to eachother
Find the missing angle and classify the triangle by sides and angles.
30˚
Scalene-Obtuse
The last side length of this triangle is 5. Why is this is not an incomplete triangles. Give at least reason why, and explain for at least 30 seconds.
When the two sides do not add up, that means that one side length is too small, compared to the rest of the side lengths, therefore not completing the triangle.
Find x, and use it to solve for each angle
x=10
8x+5=85°
5x-1=49°
4x+6=46°
If R=13ft, what is the area?
A=169π ft
How many triangles are here? And classify them by their angles.
9 triangles
2 triangles are right
4 are acute
2 are obtuse
Classify this triangle by it's sides and angles.
Scalene- right
If b=5 would this be a triangle?
Yes 12b-8=52 and 9b+8=53
52+52=104>53
Find x and y
x=40
y=62
If the circumference is 7π in, what is the area of the circle?
A=49in