Missing Piece
Expressions
Figures and Coordinate Planes
Area and Perimeter of Polygons
100
A triangle has a height of 9 cm and a base of 2 cm. What is the area of that triangle?
9 cm2
100
A rectangle has a length of 42 km and a width of 3 km. Write an expression that represents this rectangle.
(42)(3)
100
Find the distance of each segment. 
Line XY: |-4| + |7| = 11 units
Line YA: |6| - |3| = 3 units
Line AZ: |7| + |-4| = 11 units
Line ZX: |6| - |3| = 3 units
100
Find the area and the perimeter of this figure. 
Area: 36 m2
Perimeter: 24 m
200
A square has a length of 6 ft. What is the area of that square?
36 feet2
200
A triangle has a base of 14 miles and a height of 3 miles. It's hypotenuse is 16 miles. Write an expression that represents it's area.
1/2(14)(3)
200
Find the area of the figure below.
28 m2
200
Andre was upset at the ending of Harry Potter and the Half Blood Prince, so he threw it into the pool. It sank to the bottom. Shown below is a diagram of said pool. Please find the area of the pool that is not covered by the book.
116.5-1.4 = 115.4 km2
300
A parallelogram has an area of 8 1/4 m2 and a width of 2 1/4 m. What is the length of this shape?
3 2/3 meters
300
Write two expressions that represent the entire area of this figure.
(13x8) + (3x4)
AND
(11x13) - (9x3)
300
Find the area of this figure.
28 1/2 u^2
300
Find the area and the perimeter of this figure.
Area: 27 in2
Perimeter: 48 in
400
A rectangle has a length of 19.4 miles and an area of 87.3 miles. What is the width of the rectangle?
4.5 miles
400
Write two expressions that represent the entire area of this figure. 
1/2(2)(3) +1/2(3)(7)
AND
1/2(2+7)(3)
400
A triangle is represented on the coordinate plane with the vertices (-7, -6), (-7, 5), (-3, 5), and (-3, -6). Find the area of the figure by using proofs to find the length and the width.
|-6| + |5| = 11 units for length
|-7| - |-3| = 4 units for width
Area: 44 units2
400
Susie says that the expression for the area of the figure above is
1/2(3.5+1.5)(2)
Ace says it will be
1/2(3.5)(2.5)
Who is correct? How do you know that?
Neither. The expression will be
1/2(3.5)(2)
, making the area 3.5 in2. Both Ace and Susie are using measurements of the triangle that are not the base and/or the height.
500
A triangle has an area of 4.2 units. It's height is 0.7 units. What is the base this triangle?
0.6 units2
500
Write an expression to find the area of this figure.
(3x2) + (2x1) + (9x1)
500
Find the area of the figure below.
34 1/2 u^2
500
Find the area and the perimeter of the following figure.
Area: 36 cm2
Perimeter:
39 1/3 cm