A rectangular classroom measures 20 m (window and door walls) by 15 m (front and back walls). A rug is placed in the room, 3 m from the front and back of the room and 5 m from the other two walls. What is the area of the rug?
70 m2
A rectangle has the dimensions 3cm and 6cm. Find the perimeter.
18cm2
332 cm3
Extra Practice p. 175 (c)
12 u3
A rectangular tank is 4 ft long by 3 ft wide and 2 ft high. When the tank is filled 2/3 with water, what is the volume of the water?
16 ft3
56 in
The area of a square is 49 cm2. What is the perimeter?
28 cm.
Challenge Book Page 127 #1
52 cm
A rectangular prism measures 7 cm by 8 cm by 1/2 cm. What is the volume of prism?
28 cm3
A rectangular picture measures 82 cm by 75 cm. It has a border 7 cm wide all around it. What is the area of the border?
2,394 cm2
A picture measures 9 in by 7 in. A 3 in frame is added to the picture. What is the area of the picture frame?
132 in2
A rectangle has an area of 30 cm2 and a width of 6 cm. What is the perimeter of the rectangle?
22 cm
Challenge Book p. 128 #4
39 cm3
The volume of a rectangular prism is 567 in3. The height is 7. What is the length of the square base?
9 ft
The perimeter of a rectangle is 48 in. Find the area of the rectangle if its length is 16 in.
128 in2
A picture measures 9 in by 7 in. A 3 in frame is added to the picture. What is the area of the picture with the frame?
195 in3
See page
Because we're doubling one factor and halving the other, the area remains constant. However, the change in dimension changes the respective perimeters.
Extra Practice Book p.163 #1
134 m
A rectangular tank measures 20 cm long by 30 cm wide and 40 cm high is filled with water to a height of 3 cm. What is the volume of the space left in the tank?
22,200 cm3
The perimeter of a rectangular room is 60 yd. Its length is twice its width. Is costs $9 to tile 1 yd2 of the floor.
Find the cost of tiling the floor.
$7,200
8 ft
A rectangular garden measures 28 ft by 15 ft. A concrete path 1 ft wide is paved around it. What is the perimeter of the path?
94 ft
Extra Practice p.163 (c) find the AREA
213 cm2
A rectangular prism has the volume 640 in3. The height of the prism is 5 in. The length is twice the width. What is the area of the base and the measurement of the width?
128 in2
8 in
A string that is 48 in long is cut into two equal pieces. One piece is used to form a square and the other piece is used to form a rectangle. The length of the rectangle is twice its width. Find the area of both shapes.
square: 36 in2
rectangle: 32 in2