Why?
DAILY DOUBLE!!
Why would someone decompose and recompose a shape to find its area?
To make it easier to find the shape's area.
What is a vertex?
A point where two or more edges of a shape meet.
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What is the formula to find a rectangle's area?
b * h
A cube has a side length of 8 inches. Select all the values that represent the cube’s volume in cubic inches.
a. 6 * 8
b. 8 * 8 * 8
c. 82
d. 6 * 82
e. 83
b. 8 * 8 * 8
e. 83
Why will parallel lines never intersect?
Because they run side by side and have the same distance continuously between them.
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What is a net?
A 2-D figure that can be folded to make a polyhedron.
What is the formula for finding a parallelogram's area?
b * h
A square has a side length 6 cm. What is its area?
36 cm2
When finding the area of a triangle, why do you divide by 2 after multiplying the b * h?
Because a triangle is 1/2 of a quadrilateral.
What are three characteristics of a polygon?
Closed, 2-D, straight sides, do not cross each other.
What is the formula for the area of a triangle?
1/2 b * h
A square has an area of 49 m2. What is its side length?
7m
For each triangle below (see white board), draw a height segment that corresponds to the given base, and label it h.
Must be perpendicular to the base and travel as far up as the top vertex.
What is a prism?
Type of polyhedron that has two bases that are identical copies of each other. The bases are connected by rectangles or parallelograms.
What is the formula for finding the surface area of a cube?
b * h * 6
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Which one is greater?
7 * 62 or 63 ?
7 * 62
Select all units that can be used for surface area:
1. square meters
5. square inches
6. square feet
What are pyramids?
A type of polyhedron that has one base. All the other faces are triangles and they meet at a single vertex.
What is the formula for volume of a rectangular prism?
l * w * h
A rectangular prism has dimensions of 4 cm by 2 cm by 5 cm. What is its surface area?
76 cm2