Quadrilaterals
A quadrilateral has __ sides and __ angles.
4 and 4
A triangle has __ sides and __ angles
3 and 3
An angle that is smaller than 90 degrees
acute
What is the area of a rectangle that has a length of 12in and a width of 10in
120 square inches
What does perimeter measure?
The distance around the outside of the shape
How many pairs of parallel sides does a parallelogram have?
Two
What is the name for a triangle that has three equal sides?
Equilateral Triangle
A 90 degree angle is also called
A right angle
What is the area of a square with a side of 7cm?
49 square centimeters
A square has a side length of 11 cm. What is its perimeter?
44cm
This type of quadrilateral has one set of parallel sides.
Trapezoid
What is an isosceles triangle?
A triangle with two congruent sides
What is an obtuse angle?
An angle between 90 and 180 degrees
A garden has an area of 90 square meters. If the garden is 15 meters long, how wide is it?
6 meters
A rectangle has a length of 7ft and width of 24in. What is the perimeter?
16 feet
Any of these 3: Four sides, four right angles, opposite sides are parallel, opposite sides are equal.
What do you call a triangle that includes a 90 degree angle?
A right triangle
A 180 degree angle can also be called
A straight angle
What is the formula for area of a triangle?
Area = (Base x height)/2
A regular octagon has a side length of 2 1/2 inches. What is the perimeter of the octagon?
20 inches
What is the difference between a square and a rectangle?
A square has to have four equal sides while a rectangle does not need to have four equal sides.
What is a scalene triangle?
A triangle who's sides are all different lengths
Two angles that combine to form a 90 degree angle are called
Complementary
10 inches
A square garden has an area of 225 square feet. How many feet of fencing would you need to put up around the edge of the garden to fence in the whole thing?
60 feet.