Convert fractions into decimals before entering them, so do not enter any number with a slash "/ "
Do not enter negative number since a distance cannot be negative.
Do not enter the unit. For example, for 15 cm, just enter 15.
Example #1
Use the trapezoid calculator to find the area of a trapezoid with bases 6 cm and 9 cm and height 5 cm.
Enter 6 in the box that is labeled 'Enter the value of base b_{1}'
Enter 9 in the box that is labeled 'Enter the value of base b_{2}'
Enter 5 in the box that is labeled 'Enter the height h'
Hit the button labeled 'Calculate'
The calculator will display 37.5 in the box labeled ' The area of the trapezoid is'
The area of the trapezoid is 37.5 cm^{2}
Example #2
The end of a gold bar usually has the shape of a trapezoid. Use the trapezoid calculator to find the area of the end of the gold bar with bases 4 cm and 2 cm and height 3 cm.
Enter 4 in the box that is labeled 'Enter the value of base b_{1}'
Enter 2 in the box that is labeled 'Enter the value of base b_{2}'
Enter 3 in the box that is labeled 'Enter the height h'
Hit the button labeled 'Calculate'
The calculator will display 9 in the box labeled ' The area of the trapezoid is'
The area of the end of the gold bar is 9 cm^{2}

Jun 18, 21 04:59 AM
Learn how to use the addition rule for probability in order to find the probability of the union of two events