How can we help?

You can also find more resources in our Help Center.

Rectangle

Rectangle

Square

Square

This formula is used to calculate the area of what?

This formula is used to calculate the area of what?

This formula is used to calculate the area of what?

This formula is used to calculate the area of what?

Rectangle

This formula is used to calculate the area of what?

Rectangle

This formula is used to calculate the area of what?

Triangle Proportionality Theorem

Theorem 8.6

Theorem 8.7

Theorem 9.6

If a line parallel to one side of a triangle intersects the o…

If three parallel lines intersect two transversals, they divi…

If a ray bisects an angle of a triangle, then it divides the…

If c²<a²+b², then ∆ABC is acute

Triangle Proportionality Theorem

If a line parallel to one side of a triangle intersects the o…

Theorem 8.6

If three parallel lines intersect two transversals, they divi…

A = bh

A = ½ bh

A = ½ h(b₁+ b₂)

A = ½ d₁ × d₂

Area of a parallelogram

Area of a triangle (when given a perpendicular height to base)

Area of a Trapezoid

Area of a Rhombus (d being the diagonal)

A = bh

Area of a parallelogram

A = ½ bh

Area of a triangle (when given a perpendicular height to base)

Prism... Lateral area ... Total area... Volume

Pryamid... Lateral area... Total area... Volume

Cylinder... Lateral area... Total area ... Volume

Cone... Lateral area... Total area... Volume

LA=Ph... TA=LA+2B... V=Bh

LA=1/2Pl... TA=LA+B... V=1/3Bh

LA=2πrh ... TA=2πrh+2πr^2... V=πr^2h

LA=πrl ... TA=πrl+πr^2... V=1/3πr^2h

Prism... Lateral area ... Total area... Volume

LA=Ph... TA=LA+2B... V=Bh

Pryamid... Lateral area... Total area... Volume

LA=1/2Pl... TA=LA+B... V=1/3Bh

Sum of all angles in polygon

1 angle in a regular polygon

Apothem

Area of a Regular Polygon

180(n-2)

[180(n-2)]/n

tangent of x degrees=opposite/adjacent... *opposite is apothem... *…

(1/2)(p)(a)... *p is perimeter of base... *lower case a is apothem

Sum of all angles in polygon

180(n-2)

1 angle in a regular polygon

[180(n-2)]/n

Sum of Interior Angles of Polygons

Tri. Midsegment Conjecture

Parallel Lines Intercepting Arcs Conje…

Cyclic Quad. Conjecture

180 (n-2)

Midsegment is parallel to the 3rd side of a triangle & is 1/2…

Parallel lines intercept congruent arcs on a circle.

Opposite angles of a cyclic quad. are supplementary.

Sum of Interior Angles of Polygons

180 (n-2)

Tri. Midsegment Conjecture

Midsegment is parallel to the 3rd side of a triangle & is 1/2…

What are the opposite sides of a paral…

What are opposite angles of a parallel…

What do diagonals of a parallelogram do?

Area of a square

Congruent

Congruent

Bisect each other

Side x side

What are the opposite sides of a paral…

Congruent

What are opposite angles of a parallel…

Congruent