Formulas Flashcards
0
Q
AREA of Triangle
A
1/2(base)(height)
1
Q
How many INTERGERS are there between # through #?
A
B - A + 1
2
Q
Isosceles Triangles
A
2 equal sides & 2 equal angles
Special right triangle 45-45-90
3
Q
Equilateral Triangles
A
3 equal sides & 3-60* angles
4
Q
Similar Triangles
A
Angles are equal
2-5-6
4-10-12
5
Q
Find HYPOTENUSE or LEG of right triangle
A
A^2 + B^2 = C^2
6
Q
Special Right Triangle 30-60-90
A
Ratio ✅3 : 1 : 2
7
Q
Special Right Triangle 45-45-90
A
Ratio 1 : 1 : ✅2
8
Q
Special Right Triangle (#-#-#)
A
3-4-5
5-12-13
10-24-26
15-36-39
9
Q
PERIMETER of Rectangle
A
2(length + width)
10
Q
AREA of Rectangle
A
(Length)(width)
11
Q
AREA of Square
A
(Side)^2
12
Q
AREA of Parallelogram
A
(Base)(height)
13
Q
AREA of Trapezoid
A
A + B
______ (height)
2
14
Q
CIRCUMFERENCE of Circle
A
Given RADIUS: 2(pi)r
Given DIAMETER: (pi)d
