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Biblioteka

IM: 7.4.1: Lots of Flags (Lesson)

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Posljednje ažuriranje over 1 year ago
8
1.1: Scaled or Not?

1
Pitanje 1
1.

Which of the geometric objects are scaled versions of each other?

1
Pitanje 2
2.

Pick two of the objects that are scaled copies and find the scale factor.

1.2: Flags Are Many Sizes
1.3: What Percentage Is the Union?

Are you ready for more?

One standard size for the United States flag is 19 feet by 10 feet. On a flag of this size, the union (the blue rectangle in the top-left corner) is 75/8 feet by 53/8 feet.

There are many places that display flags of different sizes.

  • Many classrooms display a U.S. flag.

  • Flags are often displayed on stamps.

  • There was a flag on the space shuttle.

  • Astronauts on the Apollo missions had a flag on a shoulder patch.

1
Pitanje 3
3.

Choose one of the four options and decide on a size that would be appropriate for this flag. Find the size of the union.

1
Pitanje 4
4.

Share your answer with another group that used a different option. What do your dimensions have in common?

On a U.S. flag that is 19 feet by 10 feet, the union is 75/8 feet by 53/8 feet. For each question, first estimate the answer and then compute the actual percentage.

1
Pitanje 5
5.

What percentage of the flag is taken up by the union?

1
Pitanje 6
6.

What percentage of the flag is red? Be prepared to share your reasoning.

The largest U.S. flag in the world is 225 feet by 505 feet.

1
Pitanje 7
7.

Is the ratio of the length to the width equivalent to 1 : 1.9, the ratio for official government flags?

1
Pitanje 8
8.

If a square yard of the flag weighs about 3.8 ounces, how much does the entire flag weigh in pounds?