Formulas for shapes Flashcards
What is the formula of a square/rectangle?
Length x Width
L x W
What is the area for a triangle?
a = 1/2 b x h
What is the perimeter of a square/rectangle?
2 (L + W)
What is the formula to find a missing side of a traingle?
c² = a² +b²
What is the formula for circumference?
2π x r
What is the formula for area of a circle?
π x r²
What is the perimeter of a parallelogram?
2a + 2b
What is the area of a parallelogram?
b x h
What is the area of a trapezoid?
h x 1/2 (b¹ + b²)
What is the volume of a 3D rectangle?
l x w x h
What is the surface of a 3D rectangle?
2wh + 2hl + 2wl
what is surface of cylinder?
2π r h + 2π r²
WHat is volume of cylinder?
π r² h
what is the surface of a sphere?
4π r²
What is the volume of a sphere?
4/3 (π r² h)
What is the surface of a cone?
π r² + π r L
What is the volume of a cone?
1/3 (π r² h)
What is the volume of a pyramid?
1/3 (a x b) h