CHAPTER 7: AREABy: Brianna Tillery, Troy Jones, and

Silvestre Rojas

Area of parallelogram A four sided plane

rectilinear figure with opposite sides parallel.

Area = base x height

If H= 5 and B = 2 what is the area?

Area of rectangles A plane figure with four straight

sides and four right angles Area = w × l w = width l = length

Width x Length = area 3.5 cm x 6cm =

Area of squares A plane figure with four equal

straight sides and four right angles.

area = width × height

A x B = Area

If a = 15 and b = 7 what is the area?

Area of a Rhombi Is a convex quadrilateral whose

four sides all have the same length

Convex means: curving out or bulging outward

Area = B x H or Area = D1 x D2 / 2

B x h

if b = 12 and h = 5 what is the area?

If diagonal 1 = 9 and diagonal 2 = 14 then what is the area?

Area of a Triangle A polygon with three corners

or vertices and three sides or edges which are line segments

Area = ½ B x H

H= 8 and B= 13 What is the area?

Area of a Trapezoid is a 4-sided figure with one pair

of parallel sides Area = ½ x (B1 + B2 ) x H

If b1= 5 and b2= 7 and the H= 4 then what is the area?

Websites And Sources http://www.mathgoodies.com/lessons/vol

1/area_trapezoid.html http://wiki.answers.com/Q/What_is_the_fo

rmula_for_the_area_of_a_rhombus http://www.mathopenref.com/rhombusare

a.html