Chatper 9
A square has side length 6 cm.
What is its perimeter?
What is P= 24 cm
What does isosceles mean?
What is a triangle with two equal sides
What is the formula for the area of a rectangle?
What is Area = length × width
What is an isometry?
What is a transformation that preserves distance and angle measure (shape and size stay the same).
The Area of a Square
What is A=s2
A triangle has a base of 10 in and a height of 7 in.
What is its area?
What is A= 35 in²
In triangle congruence, what does SAS stand for?
What is Side-Angle-Side
A triangle has a base of 6 cm and a height of 4 cm. What is its area?
What is A= 12 cm².
A point moves from (3, 5) to (7, 8).
What is the translation rule that maps the point?
What is (3,5) → (7,8)
Add 4 to x and 3 to y.
Translation rule: (x, y) → (x + 4, y + 3).
A=lw
What is the Area of a Rectangle
A rectangular prism has: Length = 10 ft; Width = 4 ft; Height = 3 ft. Find the total surface area.
What is SA= 164 ft²
What line segment is drawn from the top vertex of a triangle straight down to form a right angle with the base?
What is an altitude
A square has side length 9 units. What is its area?
What is 81 units²
A figure is rotated 90° clockwise around the origin.
What happens to the coordinates (x,y)(x, y)(x,y)?
What is (x,y)→(y,–x)(x, y) → (y, –x)(x,y)→(y,–x)
A= 1/2bh
What is the area of a triangle
Find the area of this shape: A rectangle: 8 m by 5 m; A square attached to the side: 5 m by 5 m. What is the total area?
What is A= 65 m²
If you construct the perpendicular bisectors of all three sides of a triangle, where do they meet?
What is a perpendicular bisector
A right rectangular prism has length 4 cm, width 3 cm, and height 5 cm. What is its volume?
What is V= 60 cm³
Which of the following regular polygons can tessellate the plane? Select all that apply.
A. Equilateral triangle
B. Square
C. Regular pentagon
D. Regular hexagon
What is triangle, square, hexagon
A=πr2
What is the area of a circle
A cylinder has: Radius = 4 cm; Height = 12 cm. What is the volume?
What is V= 192π cm³ OR 603.19 cm³
When you draw all the perpendicular bisectors of a triangle’s sides, what special point do they meet at?
What is the circumcenter.
A triangle has vertices at (2, 3), (2, 7), and (6, 3) on a coordinate grid. What is its area? (Hint: Think of the base and height using the coordinates.)
What is A= 8 square units
A shape is reflected across the y-axis and then translated 4 units right. If the original point is (–2, 3), what are the coordinates of the final image?
What is (6, 3)
V=πr2h
What is the volume of a cylinder