What is a drawing that shows a real object with accurate sizes reduced or enlarged by a certain amount (called the scale).
scale drawing
what is a number which scales, or multiplies, some quantity.
scale factor
what is Two figures that have the same shape are said to be similar.
similar figures
what is An angle that measures less than ninety degrees but more than zero degrees
acute angle
what is an angle of 90°, as in a corner of a square or at the intersection of two perpendicular straight lines.
right angle
On a map, the scale is 1 inch = 125 miles. What is the actual distance between two cities if the map distance is 4 inches?
500 miles
On a scale drawing, the scale is inch = 1 foot. What are the dimensions on the scale drawing for a room that is 15 feet by 16 feet?
3 3/4 in. by 4 in.
A computer monitor makes a 65° angle with the desk it rest on. What is the measure of its complementary angle?
25°
Which best describes a triangle with angles measuring 60°, 40°, and 100°?
nonexistent
One of the acute angles in a right triangle has a measure of 34.6°. What is the measure of the other acute angle?
55.4°
an angle of greater than 90° and less than 180°. It is bigger than an acute angle.
obtuse angle
The vertex of an angle is the endpoint of the rays that form the sides of the angle. When we say common vertex and common side, we mean that the vertex point and the side are shared by the two angles.
adjacent angle
either of two angles whose sum is 180°.
supplementary angle
either of two angles whose sum is 90°
complementary angle
The common endpoint of two or more rays or line segments
vertex
What is the area of a circle with a diameter 10 feet?
78.5 square feet
The circumference of a dinner plate is 15.7 inches. What is the radius?
2.5 inches
Anita has a round trampoline in her yard. The website where she bought the trampoline said it has a circumference of 18.84 feet. What is the trampoline's diameter?
6ft
a straight line from the center to the circumference of a circle or sphere
radius
In her yard, Elena wants to build a flower bed that is shaped like a rectangle. She created a scale drawing to show how she wants the flower bed to look. The base length of her drawing was 4 inches and the width was 3 inches. She used a scale of 2 in = 16 ft. What are the dimensions of her garden.
32 feet long by 24 feet wide
Determine if these sides will make a triangle: 7, 8, 15
no
This cylinder is cut by the plane shown. The plane is perpendicular to the base of the cylinder. What is the shape of the cross section?
rectangle
A cosmetics company that makes small cylindrical bars of soap wraps the bars in plastic prior to shipping. Find the surface area of a bar of soap if the diameter is 5 cm and the height is 2 cm.
70.7 cm2
If a sphere has a volume of 113 cubic cm, what is the radius rounded to the nearest whole number.
3 cm
Tommy and Ethan each have a cylinder. Tommy's cylinder has a diameter of 6 inches and a height of 8 inches. Ethan's cylinder has a diameter of 8 inches and a height of 6 inches. Whose cylinder has a larger surface area? Use 3.14 for ∏. (Show all work for both)
tommy has 207.24
ethan has 251.2
So Ethan has the larger cylinder