Interior Angles and Complementary Angles

Interior Angles and Complementary Angles

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Practice Problem

Hard

Created by

Thomas White

FREE Resource

The video tutorial covers the calculation of the sum of interior angles in polygons using the formula 180(n-2). It provides examples for triangles, quadrilaterals, and pentagons. The tutorial also demonstrates solving for unknown angles in a quadrilateral using algebraic expressions. Additionally, it explains complementary and supplementary angles, providing examples and solving related problems.

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13 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for calculating the sum of interior angles of a polygon?

180(n+2)

180(n-2)

360(n-2)

360(n+2)

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a polygon has 5 sides, what is the sum of its interior angles?

360 degrees

900 degrees

720 degrees

540 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many degrees are in the sum of the interior angles of a triangle?

270 degrees

180 degrees

90 degrees

360 degrees

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sum of the interior angles of a quadrilateral?

180 degrees

450 degrees

270 degrees

360 degrees

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a quadrilateral, if the angles are expressed as 4x+10, 7x, 3x, and x+20, what is the value of x?

24

26

22

20

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the measure of angle A if it is expressed as 4x+10 and x=22?

88 degrees

104 degrees

92 degrees

98 degrees

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do complementary angles add up to?

360 degrees

90 degrees

180 degrees

270 degrees

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