

12.2 Area & Circumference
Presentation
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Medium
Standards-aligned
Padgett Linman
Used 18+ times
FREE Resource
6 Slides • 10 Questions
1
12.2 Area & Circumference of Circles
You will need to copy down the notes and examples as we go!
¡Deberá copiar las notas y los ejemplos a medida que avanzamos!

2
DIAMETER (Diámetro)
The DIAMETER goes through the center of the circle and touches the two points on the edge of the circle. El DIÁMETRO pasa por el centro del círculo y toca los dos puntos en el borde del círculo.
The DIAMETER is TWICE the RADIUS.El DIÁMETRO es DOS VECES el RADIO.
3
RADIUS (radio)
The RADIUS goes from the center of the circle to a point on the edge of the circle.El RADIO va desde el centro del círculo hasta un punto en el borde del círculo.
The RADIUS is HALF of the diameter. El RADIO es la MITAD del diámetro.
4
Multiple Choice
Identify the part of the circle.
Identifica la parte del círculo.
Radius
Diameter
5
Multiple Choice
Identify the part of the circle.
Identifica la parte del círculo.
Radius
Diameter
6
Circumference (Circunferencia)
The circumference of a circle is the distance around the circle.
La circunferencia de un círculo es la distancia alrededor del círculo.
C=2rπ or C=dπ
π≈3.14
7
Multiple Choice
Find the circumference.
Encuentra la circunferencia.
37.7 m
75.4 m
24 m
8
Multiple Choice
Find the circumference.
Encuentra la circunferencia.
17.6 ft
8.8 ft
5.6 ft
9
Multiple Choice
Find the circumference.
Encuentra la circunferencia.
28.3 in
56.5 in
113.04 in
10
Multiple Choice
Find the circumference.
Encuentra la circunferencia.
219.8 km
55.0 km
109.9 km
11
Area (Área)
The area of a circle is the square units inside the circle.
El área de un círculo son las unidades cuadradas dentro del círculo.
A=πr2
r=2d
π≈3.14
12
Multiple Choice
Find the area.
Encuentra la Àrea.
153.9mm2
21.98 mm2
43.96 mm2
38.5 mm2
13
Multiple Choice
Find the area.
Encuentra la Àrea.
3056.6 cm2
98 cm2
764.2 cm2
49 cm2
14
Multiple Choice
Find the area.
Encuentra la Àrea.
10563 yd2
182.1 yd2
91.1 yd2
2640.7 yd2
15
Multiple Choice
Find the area.
Encuentra la Àrea.
81.7 m2
326.7 m2
32.0 m2
16
Assignment: Complete 12.2 Area & Circumference Practice in Go Formative
Tarea: Completar 12.2 Práctica de área y circunferencia en Go Formative
12.2 Area & Circumference of Circles
You will need to copy down the notes and examples as we go!
¡Deberá copiar las notas y los ejemplos a medida que avanzamos!

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