Area
A rectangular notebook has a length of 8 cm and a width of 5 cm. What is the area of the notebook?
A=8×5=40 cm²
A rectangular notebook has a length of 8 cm and a width of 5 cm. What is the perimeter of the notebook?
P=2×(length+width)
P=2×(8+5)=26
2×13 = 26
A rectangle has a width of 5 meters and a perimeter of 26 meters.
What is the missing length?
Perimeter formula: P=2L+2W
26=2L+2(5)26=2L+2(5)
L=8
Multiply:
2.5×4 =
2.5 x 4 = 10
What is the largest planet in our solar system?
Jupiter
A garden is shaped like a rectangle with a length of 12 meters and a width of 7 meters. The owner wants to lay grass over the entire area. How many square meters of grass will be needed?
A=12×7=84 m²
A farmer is building a rectangular fence around a garden that is 12 meters long and 7 meters wide. How many meters of fencing does the farmer need to completely enclose the garden?
P=2×(12+7)=2×19=38 m
A rectangular swimming pool has an area of 54 m² and a length of 9 m.
👉 What is the missing width?
Area formula: A=L×W
Solve for W: 54=9×W
54 / 9 = W
W=6
Multiply:
6.34×3=
6.34 × 3 =19.02
What is the capital city of Canada?
Ottawa
A rectangular swimming pool has an area of 90 m². If the length of the pool is 10 meters, what is the width?
A=length×width
90=10×width90=10×width
width=90÷10=9 width=90÷10=9 meters
A rectangular swimming pool has a perimeter of 90 meters. If the length of the pool is 30 meters, what is the width?
P=2×(length + width)
90 = 2 × (30+ width)
90 = 60 + (2 x Width)
90 - 60 = 30
30 / 2 = 15
A rectangular garden has an area of 30 m² and a length of 5 m.
👉 What is the missing width?
👉 What is the perimeter of the garden?
Solution:
Area formula: A=L×W
Solve for WW: 30=5×W
W=6
Perimeter: 2(5+6)=22
Answers: Width = 6 m, Perimeter = 22 m
0.75×8=
0.75 × 8 = 6.00
How many continents are there on Earth?
a) 5
b) 6
c) 7
d) 8
7
A room has two sections:
Section A: A rectangle that is 4 m × 6 m
Section B: A smaller rectangle attached to the side that is 3 m × 2 m
Section A: 4×6=244×6=24 m²
Section B: 3×2=63×2=6 m²
Total area = 24+6=3024+6=30 m²
24 - (2 x 8) = (2 x short side)
24-16 = 2 x short side
8 = 2 x short side
8/2 = (2 x short side) / 2
Short side = 4
A square playground has a perimeter of 24 meters.
👉 What is the length of one side?
👉 What is the area of the playground?
Perimeter of a square: P=4s
Solve for side length: 24=4s24=4s → s=6
Area: 6×6=36
Answers: Side = 6 m, Area = 36 m²
3.62 × 2 =
3.62 × 2 = 7.24
Which of the following animals is a mammal?
a) Frog
b) Shark
c) Dolphin
d) Penguin
Dolphin
A company is designing a billboard that has an area of 24 m². They decide to double both the length and the width to make a larger version. What will be the area of the new billboard?
4x6 = 24
8 x 12 = 96
Answer: 96 m²
A company designs a rectangular window frame that has a perimeter of 24 meters. They decide to double both the length and the width to make a larger version. What will be the perimeter of the new window frame?
If both the length and width double, the perimeter will also double:
New Perimeter=2×24=48
An equilateral triangle has a base of 5cm.
What is the perimeter?
5cm + 5cm + 5cm = 15cm
9.1 × 5 =
9.1 × 5 = 45.5
What is the longest river in the world?
a) Amazon River
b) Nile River
c) Mississippi River
d) Yangtze River
Nile