Remember: Cut a shape into rectangles and triangles. Add the areas of the pieces.
Find the area
1
The L-shape is cut into two rectangles by the line inside it. What is the area of the bottom piece in square units?
2
What is the area of the top piece in square units?
3
What is the area of the whole L-shape in square units?
4
A triangle with a base of 6 and a height of 4 has an area of 24 square units.
TrueFalse
5
This triangle has a base of 5 and a height of 4. What is its area in square units?
6
The cut makes which two pieces?
two trianglesa rectangle and a triangletwo rectangles
7
Join each shape to its area in square units.
1rectangle 5 by 3
2triangle, base 6, height 4
3rectangle 4 by 4
4triangle, base 5, height 4
A10
B12
C15
D16
8
Number the steps to find the area of a shape that is not a rectangle.
Find the area of each piece
Add the areas of the pieces
Write the answer in square units
Cut the shape into rectangles and triangles
9
Which cut makes only rectangles?
Cut 1Cut 2Cut 3
10
The area of a shape is always the area of the box around it.
TrueFalse
11
This shape is a rectangle and a rectangle put together. What is its area in square units?
12
The house is a rectangle with a triangle on top. What is its area in square units?
13
Draw a different way to cut the L-shape into two rectangles. Write the area of each piece and the total.
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