Pre Calc Study Guide, Study notes of Pre-Calculus

Here are some notes for section 5.1

Typology: Study notes

2025/2026

Uploaded on 06/08/2026

luvxxi
luvxxi ๐Ÿ‡บ๐Ÿ‡ธ

8 documents

1 / 1

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
MTH 108: 5.1 Review Problems
1. Find the length of the arc subtended by an angle of
20ยฐ
in a circle with radius 10
๐‘๐‘š.
20
180
(
10
)
๐œ‹ = 10๐œ‹
9.๐‘๐‘š
2. Find the area of a circular sector of a circle with
๐‘Ÿ = 4.๐‘๐‘š
and central angle
45ยฐ
.
1
2
2
๐œ‹
4
3
4!= 2๐œ‹.๐‘๐‘š!
3. The area of a circular sector is 16
๐‘๐‘š!
. The radius of the circle is 4 cm. Find the central
angle.
16 =1
2๐œƒ(16)
๐œƒ = 2.๐‘Ÿ๐‘Ž๐‘‘๐‘–๐‘Ž๐‘›๐‘ 
4. When are you getting more pizza? If you get one slice of a 16-inch pizza and the pizza
was cut into 12 (equal) slices or if you get one slice of 14-inch pizza that was cut into 8
(equal) slices.
1
12 ๐œ‹8!=
16
3๐œ‹
1
8๐œ‹7!=
49
8๐œ‹
One slice of 14-inch pizza

Partial preview of the text

Download Pre Calc Study Guide and more Study notes Pre-Calculus in PDF only on Docsity!

MTH 108: 5. 1 Review Problems

  1. Find the length of the arc subtended by an angle of 20ยฐ in a circle with radius 10 ๐‘๐‘š. 20 180
  1. Find the area of a circular sector of a circle with ๐‘Ÿ = 4 ๐‘๐‘š and central angle 45ยฐ. 1 2

3 4!^ = 2 ๐œ‹ ๐‘๐‘š!

  1. The area of a circular sector is 16 ๐‘๐‘š!. The radius of the circle is 4 cm. Find the central angle. 16 =
  1. When are you getting more pizza? If you get one slice of a 16-inch pizza and the pizza was cut into 12 (equal) slices or if you get one slice of 14-inch pizza that was cut into 8 (equal) slices.

๐œ‹ 8!^ =

๐œ‹ 7!^ =

One slice of 1 4 - inch pizza