Intro to Area of a Triangle

What is area?

• Area is a place

• Area is a shape

• Area is not real

• Area is the size of the surface of a shape

What is a triangle?

• A 3-d shape

• A 4 sided shape

• A 2-d shape with 3 sides

• A shape with 5 sides

Tags

CCSS.2.G.A.1

There are 2 possible formulas for the area of a triangle

• True

• False

Tags

CCSS.6.G.A.1

Choose both of the formulas:

•  $A=\frac{bh}{2}$  

•  $A=b\cdot h\cdot\frac{1}{2}$  

•  $A=bh$  

•  $A=b\cdot\frac{1}{2}\cdot h$  

Tags

CCSS.6.G.A.1

In the equations that we use to find the area of a triangle, they both contain the letter b. What does the letter b stand for?

• baseball

• balloon

• bottom

• base

Tags

CCSS.6.G.A.1

In the equations that we use to find the area of a triangle, both contain the letter h. What does the letter h stand for?

• human

• hand

• half

• height

Tags

CCSS.6.G.A.1

Why does one equation multiply by  $\frac{1}{2}$  and the other divides by 2?

• This is because they provide 2 different answers to the problem

• One is wrong

• Multiplying by  $\frac{1}{2}$  and dividing by 2 is the same

Tags

CCSS.4.MD.A.2

When I am finding the area of a triangle I can use either possible equation and I will get the same answer either way

• True

• False

Tags

CCSS.6.G.A.1

In this triangle, what part of the triangle has a value of 20?

• base

• height

In this triangle, what part has a value of 12?

• base

• height