Triangle and parallelogram surfaces. We will talk about a few geometrical figures here. The following section provides a thorough explanation of parallelogram and triangle areas along with numerous theorems and proofs. Read the article below to get all the details you need to learn quickly and easily.

## What is the “11-1 Areas of Parallelograms and Triangles Worksheet”

This worksheet will explore some of the Areas of Parallelograms and Triangles.

## What are Areas of Parallelograms and Triangles?

A parallelogram’s area is the same as the area of a rectangle with the same base and height, or between the same parallels. A triangle’s area is equal to half the sum of any two of its sides plus the corresponding altitude.

How will the “11-1 Areas of Parallelograms and Triangles Worksheet” help you?

This worksheet will help the students to understand the Areas of Parallelograms and Triangles, and also improves their problem-solving.

## Instructions on how to use the “11-1 Areas of Parallelograms and Triangles Worksheet.”

Study the concept and examples given and try to solve the exercises below.

## Conclusion

The area of a triangle is equal to half the area of a parallelogram if they share the same base and are situated between the same parallels.

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## 11-1 Areas of Parallelograms and Triangles Worksheet (with answer key + PDF)

The area represents the amount of planar surface being covered by a closed geometric figure.

**Area Closed Figures**

**Figures on the Common Base and Between the Same Parallels**

Two shapes are said to be between the same parallels and on the same base if:

- They share a side.
- The vertices opposite the common side and the sides parallel to the common base all lie in the same straight line.

**For example,** Parallelogram ABCD, Rectangle ABEF, and Triangles ABP and ABQ

**Area of a Parallelogram**

Area of a parallelogram = b × h

Where ‘b′ is the base and ‘h′ is the corresponding altitude (Height).

**Area of a triangle**

Area of a triangle = (1/2) × b × h

Where **“b”** is the** base** and “**h”** is the corresponding **altitude**.

## Worksheet

Find the area of the following triangles.

Find the area of the following parallelograms.

## Answer Key

You can download this worksheet here.