Formula for the Area of a Triangle

Presentation

•

Mathematics

•

6th Grade

•

Practice Problem

•

Hard

•

CCSS

6.G.A.1, 8.G.B.7, HSG.CO.C.11

Standards-aligned

Ashley Moser

Used 1+ times

FREE Resource

11 Slides • 15 Questions

Formula for the Area of a Triangle

Multiple Select

Select all the statements that are true about bases and heights in a triangle.

Any side of a triangle can be a base.

There is only one possible height.

A height that corresponds to a base must be drawn at a right angle to the base.

Draw

For each triangle, a base has been labeled, and a dashed line indicates a possible height.

Circle the triangles that correctly labeled base-height pair.

Labeling

Label the base, height, and area of the triangles.

Drag labels to their correct position on the image

Math Response

What is a formula that can be used to find the area of ANY triangle?

Type answer here

Deg^°

Rad

Draw

Step 1: Draw a circle around the base.

Step 2: Draw a rectangle around the height.

Math Response

Write the equation to find the area of this triangle.

Type answer here

Deg^°

Rad

Math Response

Write the equation to find the area of this triangle.

Type answer here

Deg^°

Rad

Multiple Choice

What is the area?

15 sq cm

50 sq cm

6 sq cm

Multiple Choice

What is the base of this triangle?

4 cm

5 cm

4.8 cm

Multiple Choice

What is the height of this triangle?

4 cm

5 cm

4.8 cm

Draw

Circle the triangles that have the base and height correctly labeled.

Multiple Select

Andre drew a line connecting two opposite corners of a parallelogram. Which statements are true about the triangles made by the line Andre drew?

Each triangle has a side that is the same length as the diagonal line.

Each triangle has one side that is 3 units long.

The two triangles have the same area as each other.

Hotspot

Which 2 triangles have the same area?

Multiple Choice

What is the formula to find the area of a triangle?

Area = 1/2 * base * height

Area = base + height

Area = base * height

Area = 2 * (base + height)

Poll

How confident do you feel about this topic now?

Very confident

Somewhat confident

Not confident

Formula for the Area of a Triangle

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