Area of a Triangle

What are the 2 formulas for the area of a triangle?

• $A=\frac{b\cdot h}{2}$

• A=3bh

• $A=b\cdot h\cdot\frac{1}{2}$

• A=2hb

Tags

CCSS.6.G.A.1

What does b stand for?

• bubbles

• bottom

• buttercup

• base

Tags

CCSS.RF.3.3B

CCSS.RF.3.3C

CCSS.RF.3.3D

CCSS.RF.4.3A

CCSS.RF.5.3A

What does h stand for?

• hugs

• hippos

• hypnotize

• height

Tags

CCSS.RF.3.3B

CCSS.RF.3.3C

CCSS.RF.3.3D

CCSS.RF.4.3A

CCSS.RF.5.3A

Why do we multiply by  $\frac{1}{2}$  or divide by 2?

• Because we want to

• To make it harder

• To confuse more people

• Because a triangle is equivalent to half of a rectangle

Tags

CCSS.3.G.A.1

True or False: We can use either equation and get the same answer

• True, the equations get us the same answer either way

• False, they get 2 different answers

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Find the area of this triangle

• 70 m

• 70²

• 70 m²

• 140

Tags

CCSS.6.G.A.1

Find the area of this triangle

• 48 units²

• 12 units²

• 16 square units

• 24 units²

Tags

CCSS.6.G.A.1

Find the area of this triangle

• 60 cm

• 120 m²

• 30 units²

• 17 square units

Tags

CCSS.6.G.A.1

Find the area of this triangle

• 40 square units

• 20 m²

• I cant answer from the info in this picture

• 35 units²

Tags

CCSS.6.G.A.1

Find the area of this triangle

• 6 cm²

• 40 cm²

• 12 square cm

• 20 cm²

Tags

CCSS.6.G.A.1