area of a trapezoid

[math master]

if anyone needs this it's base1 +base2 multiplied by hight divided by 2
b1+b2 times x h/2

 

[Steven G]

The formula is \(\displaystyle A = \dfrac{b_1 + b_2}{2}h\)

 

[Steven G]

if anyone needs this it's base1 +base2 multiplied by hight divided by 2
b1+b2 times x h/2

You need to put parenthesis around b1+b2, else only the b2 gets multiplied by h/2. Also there is no need to write both times and x to show multiplication.

 

[lookagain]

if anyone needs this it's base1 +base2 multiplied by hight divided by 2
b1+b2 times x h/2

math master, there is already a page on this site called "Calculate the Area of Common Shapes" that has the formula for the area of a trapezoid. If you are
considering posting additional formulas that you think the community needs,
check with the Free Math Help pages first to see if they are listed, please.