please check:
Decide what number or description is indicated by the capitalzied words by using your knowledge about prefixes.
1. Our group sat in a SEMICIRCLE.
half circle
2. An OCTOPUS has _____ arms.
eight
3. Our city celebrated its SESQUICENTENNIAL.
150 years
4. A DECATHLON has _____ separate events.
ten
5. OCTOGENARIANS are people who are in their _____.
eighties
6. How often is a BIANNUAL magazine published?
twise
7. The J.F. Max Company celebrated its CENTENNIAL.
100 year anniversary
8. The acting DUET consisted of _____ acters.
two
9. He positioned his camera on a TRIPOD before the play started.
three
10. A year LESS than a DECADE is _____ years.
nine
thanks
Right.
Great job on your explanations! Here's a breakdown of the answers you provided:
1. The word "semicircle" has the prefix "semi-" which means "half." Therefore, a semicircle is a half circle.
2. The prefix "octo-" means "eight." An octopus has eight arms.
3. The term "sesquicentennial" has the prefix "sesqui-" which means "one and a half." Therefore, a sesquicentennial refers to 150 years.
4. The prefix "deca-" means "ten." A decathlon consists of ten separate events.
5. The prefix "octo-" means "eight." Octogenarians are people who are in their eighties.
6. The prefix "bi-" means "two." A biannual magazine is published twice a year.
7. The term "centennial" has the prefix "centi-" which means "one hundred." Therefore, a centennial refers to a 100-year anniversary.
8. The prefix "du-" means "two." A duet consists of two actors.
9. The prefix "tri-" means "three." A tripod has three legs that support the camera.
10. The prefix "de-" means "ten." A decade refers to a period of ten years. Therefore, a year less than a decade would be nine years.
Great job again! Let me know if there's anything else I can help you with.