Shapes 1
A shape with 4 sides
Quadrilateral
A closed 2-D shape
A polygon
Straight Angle
Area of a 4 x 4 cm square
16 cm2
Find the perimeter of this square. One of the dimensions is 13 meters.
13 x 4 = 40 + 12 = 52 m
A shape with 5 sides and all sides are the same length.
Regular Hexagon
A shape with 3 sides, a right angle, and two sides that are the same length.
Isosceles Triangle
Definition of an acute angle
An angle that measures less than 90º and more than 0º
Area of a 25 x 10 in rectangle
250 in2
Find the perimeter of a regular hexagon that has a side of 250 centimeters.
250 x 6 = 1,200 + 300 = 1,500 centimeters
A shape with 6 sides
A hexagon
A shape with 4 sides, with two sets of parallel sides and four right angles.
A rectangle
Definition of an obtuse angle.
An angle that measures more than 90º but less than 180º.
Area of a 25 x 18 ft. rectangle
250 + 200 = 450 ft.2
Find the perimeter a rectangle where the dimensions are 144 x 36 kilometers
288 + 72 = 360 kilometers
A shape with exactly one pair of parallel sides.
A trapezoid.
Draw a shape with exactly 2 acute angles and two 2 obtuse angles
SHOW ME YO SHAPES
45º + 45º =
What is the name and measure of this angle?
90º, Right angle
Find the area of a square where one of the dimensions is 16 miles.
160 + 96 = 156 mi.2
The perimeter of a square is 1,600 yards. Find the length of the dimension.
1,600 divided by 4 = 400 yards
A shape with 4 sides, 2 pairs of congruent sides, and exactly one line of symmetry.
A Kite
A shape with 2 pairs of parallel sides, all 4 sides are the same length, but no right angles.
A Rhombus
60º + 60º + 60º + 180º =
360º
A rectangle has an area of 350 sq. nanometers. One of the dimensions is 70 nanometers. What is the missing dimension?
5 nanometers2
490 - 60 = 430
430 divided by 2 = 215