Angle Relationships and Triangles
How many degrees are in a triangle?
180 Degrees
Name the 3 parts of a circle.
Radius, Diameter, and Circumference
A circle has a diameter of 2 inches, what is the area of the circle?
3.14 inches2
When a shape is shaded inside another shape that isn't, do you add or subtract the areas of the two shapes?
Subtract the areas
Figures with same size and same shape are called?
Congruent Figures
How many degrees are in a pair of complementary angles?
90 Degrees
What are the formulas for Circumference of a Circle?
C=(3.14)(D) and C=2(3.14)(R)
A rectangle has an area of 20 meters and a side length of 5 meters. What is the missing side length measurement?
4 meters
True of False
Composite figures consist of 1 or more shapes.
False.
2 or more shapes.
Figures with same shape but not same size are called?
Similar Figures
How many degrees are in a pair of supplementary angles?
180 Degrees
What is the circumference of a circle that has a radius of 2 inches?
12.56 inches
A trapezoid has bases of 5 cm and 10 cm with a height of 4 cm. What is the area of the trapezoid?
30 cm2
Free 400
Free 400
A rectangle has a perimeter of 15 cm and will be enlarged with a scale factor of 4. What is the perimeter of the new rectangle?
60 cm
A right triangle has an angle measure of 20 degrees. What is the missing third angle measure?
70 Degrees
What is the circumference of a circle that has a diameter of 4 inches?
12.56 inches
A triangle has an area of 36 ft2 and a base of 12 ft. What is the height of the triangle?
6 ft.
A composite figure has a total area of 55 inches2. One of the two shapes is a rectangle with an area of 25 inches2. What is the area of the second rectangle in the composite figure?
30 inches2
Suzie walks 1.5 miles to school. When she looks at the map it shows the scale to be 1 cm = 0.5 miles. What is the distance between Suzie's house and her school on the map?
3 cm