Quiz 25, 12.1 - 12.6 Flashcards
two rays that share a common endpoint
angle
intersecting lines that form four right angles
perpendicular lines
lines that never intersect
parallel lines
a group of points having two endpoints
line segment
a four-sided polygon
quadrilateral
a rectangle having four congruent sides
square
an eight-sided polygon
octagon
a quadrilateral having only two sides that are parallel
trapezoid
formula for perimeter of a rectangle
P = 2l + 2w
formula for perimeter of a square
P = 4s
formula for perimeter of a parallelogram
P = 2l + 2w
formula for area of a square
A = s * s
formula for area of a rectangle
A = lw
formula for area of a parallelogram
A = bh
find the area of a square with 4 ft. sides
16 sq. ft.
find the area: rectangle - length = 22 m & width = 18 m
22 x 18 =
396 sq. m
find the area: parallelogram - base = 5.5 ft. and height = 2.5 ft.
- 5 x 2.5 =
13. 75 sq. ft.
