Mathematics Grade 3 15 min

Find the missing side length of a rectangle

Find the missing side length of a rectangle

Tutorial Preview

1

Area is 12 sq cm. Length is 4 cm. Find the width.

2

Area is 20 sq ft. Width is 5 ft. Find the length.

3

Perimeter is 14 in. Length is 5 in. Find the width.

Sample Practice Questions

Easy
A rectangle has an area of 10 and a length of 5. What is the width?
0.2
1.5
2.15
3.50
Easy
The area of a rectangle is 8. Its width is 2. What is the length?
0.6
1.10
2.16
3.4
Easy
A rectangle's area is 9 and its width is 3. Find the length.
0.27
1.3
2.12
3.6

Want to practice and check your answers?

Sign up to access all questions with instant feedback, explanations, and progress tracking.

Start Practicing Free

More from Geometric Measurement

Mathematics for other grades

Frequently asked questions

What grade level is "Find the missing side length of a rectangle"?

Find the missing side length of a rectangle is a Grade 3 Mathematics lesson on ExcelOS.

What will I learn in Find the missing side length of a rectangle?

Find the missing side length of a rectangle

Is "Find the missing side length of a rectangle" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Find the missing side length of a rectangle?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

Ready to find your learning gaps?

Take a free diagnostic test and get a personalized learning plan in minutes.