Unit 3 Retest

Front

What is the relationship between the number of sides in a polygon and the measure of each exterior angle?

Back

The product of the number of sides in the polygon and the measure of each exterior angle is a constant.

Front

How do you calculate the measure of an interior angle of a polygon?

Back

The measure of an interior angle of a polygon can be calculated using the formula: (n-2) * 180° / n, where n is the number of sides.

Front

What is the sum of the interior angles of a polygon with 14 sides?

Back

The sum of the interior angles of a polygon can be calculated using the formula: (n-2) * 180°. For a 14-sided polygon, it is (14-2) * 180° = 2160°.

Front

What is the measure of each exterior angle of a regular polygon with 14 sides?

Back

Each exterior angle of a regular polygon can be calculated using the formula: 360° / n. For a 14-sided polygon, it is 360° / 14 = 25.71°.

Front

What is the perimeter of an equilateral triangle with a side length of 10 inches?

Back

The perimeter of an equilateral triangle is calculated as 3 times the side length. So, for a side length of 10 inches, the perimeter is 3 * 10 = 30 inches.

Front

How do you find the altitude of an equilateral triangle?

Back

The altitude of an equilateral triangle can be found using the formula: h = (√3/2) * a, where a is the length of a side.

Front

What is the value of x if 2x + 3 = 23?

Back

To find x, solve the equation: 2x + 3 = 23. Subtract 3 from both sides to get 2x = 20, then divide by 2 to find x = 10.

Front

What is the order of angle measures from least to greatest if ∠J = 30°, ∠K = 60°, ∠L = 90°?

Back

The order from least to greatest is ∠J, ∠K, ∠L.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle can be calculated using the formula: Area = 1/2 * base * height.

Front

What is the relationship between the angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180°.