Triangles
Trigonometry
Circles
Area
Transformations
100
Use the fact that a triangle is 180 degrees.
33
100
Find sin(A). Use SOH CAH TOA
12/13
100
Find the area of a circle using pi times radius squared.
144pi or 452.38
100
If the height is 10 and the base is 15, what is the area of the triangle?
75
100
Reflect the points over the y-axis.
Use (x, y) --> (-x, y)
(-2, 1)
(-2, -1)
200
Find AC. Use a^2 + b^2 = c^2
12
200
Use SOH CAH TOA
15/17
200
Find the perimeter of the circle using diameter times pi.
24pi or 75.39
200
If AB is 5 and AD is 9, what is the area of a rectangle?
45
200
Translate ABC 4 units to the right and 2 units down.
(-8, -2)
(-4, -2)
(-4, 3)
300
If the base is 12 and the height is 7, what is the area of the triangle.
42
300
If a is 7, b = 16, and c is 17, what is cos(A)? Use SOH CAH TOA
16/17
300
If BDC is 270, what is BC?
90
300
If the diameter of a circle is 10, what is the area of the circle?
25pi
300
If A (2, 6), B (5, -1), and C (3, -4), and the shape is dilated by a scale factor of 2, what are the coordinates of A, B, and C?
(4, 12), (10, -2), (6, -8)
400
Use laws of sines to find c.
11.788
400
Find tan(A). Use SOH CAH TOA
300/400 or 3/4
400
If the radius is 7 and the angle in the circle is 45, what is the arc length?
630pi/360 or 5.49
400
Find the area.
150+12.5pi or 189.26
400
Rotate the following points 180 degrees counter-clockwise using (x, y) --> (-x, -y)
(-3, 2) (0, 5) (5, -3)
(3, -2)
(0, -5)
(-5, 3)
500
If a = 7, c = 8, and B = 35, what is b?
4.61
500
If a is 4 and b is 3, what is sin(A)? Use SOH CAH TOA
4/5
500
If x is 5, use pi times the angle times radius squared divided by 360 to find the area of a sector.
2000pi/360 or 17.45
500
Find the area of the figure.
4+pi or 7.14
500
270 degree counter clockwise rotation is the same as what other rotation?
90 degree clockwise