Look at the rectangle ABCD below.
Given in cm:
AB = 10
BC = 5
Calculate the area of the rectangle.
We have hundreds of course questions with personalized recommendations + Account 100% premium
Look at the rectangle ABCD below.
Given in cm:
AB = 10
BC = 5
Calculate the area of the rectangle.
Let's calculate the area of the rectangle by multiplying the length by the width:
50
Look at the rectangle below.
Side DC has a length of 1.5 cm and side AD has a length of 9.5 cm.
What is the perimeter of the rectangle?
Area measures space inside the rectangle! When you multiply length × width, you're counting how many unit squares fit inside. Adding gives you perimeter - the distance around the edges.
Use cm for length measurements (like 10 cm for side AB). Use cm² for area because you're measuring space in square units. Think: cm × cm = cm²!
Not at all! Multiplication is commutative, so 10 × 5 = 5 × 10 = 50. You can call either side the length or width - the area stays the same.
Think about filling the rectangle with unit squares. If you have 10 squares across and 5 rows down, you need 10 × 5 = 50 total squares!
Always convert to the same unit first! If one side is 10 cm and another is 0.05 m, change 0.05 m to 5 cm, then multiply: 10 × 5 = 50 cm².
Get unlimited access to all 18 Rectangles questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime