Decompose Shapes to Find Area

Find the area of the sandbox.

• 98 square feet

• 112 square feet

• 100 square ft

• 104 square ft

Find the area of the parallelogram.

• 20 sq. cm

• 22 sq. cm

• 11 sq. cm

• 220 sq. cm

Tags

CCSS.6.G.A.1

If I need to find the area of these Polygons; how could I decompose them in order to use formulas I already know? Draw lines to show what shapes you have inside the Octagon & Hexagon. Then decompose the Hexagon in 2 different ways.

Drag the formulas to the shape they belong to.

d

c

b

a

Area = Base x Height Divided by 2

Tags

CCSS.6.G.A.1

This right triangle's area is __ in²

Tags

CCSS.6.G.A.1

Find h

• h = 6

• h = 491 in²

• h = 6 in²

• h = 8 in²

Tags

CCSS.6.G.A.1

We learned 3 different ways to find the area of a ​ (a)   . When we ​find the area by (b)   ​ we break the trapezoid into 1 ​rectangle and ​ (c)   ​ triangles . When we compose in order to find the area, we copy, flip, and put it side by side to make a ​ (d)   . The last way we learned to find its area was using the formula: ​ ​ ​ ​ ​ (e)  

• trapezoid

• parallelogram

• circle

• decomposing

• 1 or 2

• hexagon

• multiply

• A=BH

• 2

• A=LW

• 4

• area

• height

• divide

• 3.25 cm2

• 6R5

• 6.5 cm2

Tags

CCSS.6.G.A.1

Read it a third time then figure out what you have to DO.

Fill in the blanks to complete the steps you will take to solve the problem

First I need to figure out the ____ of the pool.