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7th Math 3.EOM Composite Areas Reteach

Last updated over 2 years ago

4 questions

1

1

1

4

Question 1

1.

Tool Time--Mr. Kovalik is building a piece of furniture for a home DIY project. The plank of wood is a square and he wants to drill out a circle. What is the area of wood leftover in the corners (the grey shaded areas)?

You can use 3.14 or leave in terms of π.

CFS:
#1: Determines which simple shapes are in the figure
#2: Uses appropriate area formulas and operations

Question 2

2.

14th--Ms. Zangrilli is designing stickers for Prize’s Valentine’s event. What is the total area of the heart-shaped sticker?

You can use 3.14 or leave in terms of π.

CFS:
#1: Determines which simple shapes are in the figure
#2: Uses appropriate area formulas and operations

Question 3

3.

Circular Challenge--A scientist wanted to create an image to represent a lunar eclipse for his new textbook. It is represented by one larger circle and one smaller circle. What is the area of the shaded region?

You can use 3.14 or leave in terms of π.

CFS:
#1: Determines which simple shapes are in the figure
#2: Uses appropriate area formulas and operations

Question 4

4.

RETAKE--A new type of frisbee is being sold at Big 10 Sporting Goods. It has a hole cut out of it to improve how it flies in the air.

An employee wants to know how the area of the frisbee that is made of plastic (the grey shaded region).
Calculate this area and use 3.14 to approximate π.

CFS:
#1: Determines which simple shapes are in the figure
#2: Uses appropriate area formulas and operations

Good work! You can either...

1) Work on starred inequality skills from yesterday on IXL

2) Work on recommended skills from your Diagnostic