Vocabulary
Two lines that meet at a 90 degree angle.
acute
This is what we call any 5-sided polygon.
pentagon
My polygon has sides that are all the same length, only acute angles, no right angles, and exactly 3 sides.
acute equilateral triangle
Find the perimeter of a rectangle with the following dimensions: 4 ft. and 13 feet.
34 feet
What term matches this definition:
An angle that is less than 90 degrees.
Acute angle
An angle that measures 90 degrees is called:
right
This polygon is a quadrilateral with congruent sides and 90 degree angles.
square
My polygon has obtuse and acute angles, no line of symmetry, no right angles, and 2 sets of parallel sides.
parallelogram
Find the area of a rectangle with the following dimensions: 20 yards and 7 yards.
140 square yards
What vocabulary word matches this definition:
A real or imaginary line that divides a shape into two mirror images.
line of symmetry
obtuse
This is an 8 sided polygon.
Octagon
My polygon has more than 3 vertices, no parallel lines, no right angles, and exactly one line of symmetry.
hexagon
You see a square with one dimension labeled as 5 inches. What is its area and perimeter?
A = 25 square inches
P = 20 inches
A) point
b) line segment
c) ray
c) ray
If a straight angle is broken into two smaller angles, with one measuring 38 degrees, what is the other angle measure?
142 degrees
This polygon is a quadrilateral with only one set of parallel sides.
trapezoid
My polygon is a quadrilateral with 2 pairs of parallel sides, all 90 degree angles, and one pair of sides is double the length of the other.
rectangle
Lucy found a painting that is 32 inches by 4 inches. What is the area and perimeter?
A = 128 square inches
P = 72 inches
Write the definition of an obtuse angle.
An angle that is greater than 90 degree, but less than 180 degrees. Yes, you have to have both parts of that definition!
Mrs. T watered her garden with a rotating sprinkler. Every second, the sprinkler turned 15 degrees. How many seconds would it take to make a full rotation?
24 seconds
(1 second = 15 degrees, 2 seconds = 30 degrees, etc.)
(360 / 15 = 24)
This polygon has 3 sides, 1 obtuse angle, and no sides of the same length.
My polygon is not a quadrilateral, it has 3 interior angles, one interior angle is a right angle, and it has exactly two sides that are congruent.
isosceles right triangle
A rectangular wall has one dimension labeled as 12 feet. You know its perimeter is 64 feet.
What is the other dimension?
What is the area?
Other dimension = 20 feet
Area = 240 square feet