Calculating Areas and Dimensions

This video tutorial covers a review of unit 9, focusing on geometry concepts such as calculating the area and circumference of circles, the area of squares, parallelograms, triangles, trapezoids, kites, and rhombuses. It also includes an analysis of quadrilaterals using slopes and the Pythagorean theorem. The tutorial concludes with an error analysis to correct common mistakes in geometric calculations.

What is the diameter of circle B if its radius is 4 inches?

• 4 inches

• 8 inches

• 16 inches

• 12 inches

How do you calculate the area of a circle with a radius of 5?

• 5π

• 10π

• 25π

• 50π

What is the circumference of a circle with a radius of 3?

• 6π

• 3π

• 9π

• 12π

If the perimeter of a square is 40, what is the length of one side?

• 10

• 8

• 12

• 5

How do you find the area of a parallelogram with a base of 6 and height of 4?

• 10

• 20

• 30

• 24

What is the area of a triangle with a base of 10 and height of 5?

• 30

• 25

• 15

• 50

How do you calculate the area of a trapezoid with bases 8 and 10, and height 5?

• 45

• 60

• 75

• 50

What is the area of a kite with diagonals 6 and 8?

• 48

• 36

• 24

• 12

How do you find the area of a rhombus with diagonals 10 and 12?

• 40

• 50

• 30

• 60

What is the height of a trapezoid if one side is 5 and the hypotenuse is 13?

• 11

• 12

• 13

• 10