Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
Related questions
Question
Plz do #8. and #9.
Help needed asap
![### Geometry Worksheet: Circle Calculations
**7.** Name a semicircle.
**For questions 8 and 9, find the area and circumference. Round to the nearest hundredth.**
#### 8.
A circle with a radius of 18 inches.
- Radius (r) = 18 in
- **Area (A) = ________**
- **Circumference (C) = ________**
#### 9.
A circle with a diameter of 25 meters.
- Diameter (d) = 25 m
- **Area (A) = ________**
- **Circumference (C) = ________**
#### 10.
If the area of a circle is 201.06 cm², find its diameter and circumference.
- **Diameter (d) = ________**
- **Circumference (C) = ________**
---
**Note:**
- The area of a circle (A) is given by the formula: \( \pi r^2 \).
- The circumference of a circle (C) is given by the formula: \( 2\pi r \) or \( \pi d \).
- The relation between radius (r) and diameter (d) is: \( d = 2r \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F35195e69-c0fd-4e3e-8fe2-c8d702cd82d7%2F5dc9b95a-401b-4a60-abc6-d331535beabb%2Fgvmuga_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Geometry Worksheet: Circle Calculations
**7.** Name a semicircle.
**For questions 8 and 9, find the area and circumference. Round to the nearest hundredth.**
#### 8.
A circle with a radius of 18 inches.
- Radius (r) = 18 in
- **Area (A) = ________**
- **Circumference (C) = ________**
#### 9.
A circle with a diameter of 25 meters.
- Diameter (d) = 25 m
- **Area (A) = ________**
- **Circumference (C) = ________**
#### 10.
If the area of a circle is 201.06 cm², find its diameter and circumference.
- **Diameter (d) = ________**
- **Circumference (C) = ________**
---
**Note:**
- The area of a circle (A) is given by the formula: \( \pi r^2 \).
- The circumference of a circle (C) is given by the formula: \( 2\pi r \) or \( \pi d \).
- The relation between radius (r) and diameter (d) is: \( d = 2r \).
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