Geometry Concepts: Angles and Areas

Geometry Concepts: Angles and Areas

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

This video tutorial covers the calculation of the area of a sector and a segment. It begins with an introduction to the concepts and then provides two examples. The first example demonstrates how to find the area of a sector with a 45-degree arc and a radius of 12. The second example explains how to calculate the area of a segment with a 90-degree arc and a radius of 10, by subtracting the area of a triangle from the area of the sector.

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main focus of the video?

Calculating the perimeter of a circle

Finding the area of a rectangle

Understanding the properties of triangles

Finding the area of a sector and a segment

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the first example, what is the radius of the sector?

10

20

15

12

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the degree of the arc in the first example?

30 degrees

90 degrees

45 degrees

60 degrees

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the area of a sector calculated?

As a fraction of the area of a rectangle

As a fraction of the area of a square

As a fraction of the area of a circle

As a fraction of the area of a triangle

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the simplified fraction of 45 over 360?

1/10

1/8

1/4

1/6

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the second example, what is the radius of the segment?

11

10

9

8

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the degree of the arc in the second example?

120 degrees

60 degrees

75 degrees

90 degrees

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