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2D Geometry Formulas Flashcards | StudBud
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2D Geometry Formulas
2D Geometry Formulas
15 terms
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geometry, 2D and 3D figures, formulas
Flashcards
15 cards
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Questions
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Answers
1
Formula for area of a parallelogram is
A=1/2BH
A=BH
A=LW
A=S1 xS2
2
The formula for area of a rectangle is
A=⫪r2
A=1/2(b1 + b2)h
A = 1/2bh
A=lw
3
The hypotenuse is always the longest side of a right-angled triangle.
True
False
4
The formula for area of a triangle is
A = 1/2bh
A=1/2(b1 + b2)h
A=lw
A=⫪r2
5
The formula for perimeter of a rectangle is
P = 4s
P = L+W+L+W
P = side a + side b + side c
P = 2(L + W)
6
The Pythagorean Theorem states that...
c2 = a2 - b2
a2 + b2 = c2
a2 - b2 = c2
2a2 + 2b2 = 2c2
7
The formula for pi is
π = d/c
π = c/d
π = c-d
π = cd
8
The formula for area of a circle is
A=πlw
A=1/2(b1 + b2)h
A = πbh
A=πr2
9
The formula for area of a quarter circle is
A=1/4πr2
A=1/4(b1 + b2)h
A=1/2πr2
A = 1/4bh
10
The formula for area of a half circle is
A=lw
A=2⫪r2
A=1/2(b1 + b2)h
A=(⫪r2)/2
11
The formula for perimeter of a trapezoid is
P = L+W+L+W
P = side a + b1 +b2 + side c
P = 2(L + W)
P = 4s
12
In the Pythagorean Theorem, "c" always represents the hypotenuse.
True
False
13
The formula for area of a trapezoid is
A = 1/2bh
A=lw
A=1/2(b1 + b2)h
A=⫪r2
14
The formula for perimeter of a triangle is
P = side a + side b + side c
P = 2(L + W)
P = 4s
P = L+W+L+W
15
The formula for circumference of a circle is
C = πr
C = πd2
C = πd
C = πr2
