Question

Can someone help me with this question

Answer 1

Answer: 126 mm^2.

Step-by-step explanation: When finding the area of a trapezoid, you need to add two bases, multiply the height, and divide it all in half.  The steps are done below:

1. First, we need to find the bases and the height.  The bases are are circled below, but it's basically the top and bottom lengths of the triangle.  Base 1 doesn't have to be 10 either, it can be 18 base 2 can be 10, whichever works for you.  All you need is to assign each base with a top or bottom length.  The height is how tall the trapezoid is, which is also circled below.
2. Secondly, we need to add the bases and multiply the height. B1 is base 1, b2 is base 2, and h is the height.  It should look like this: 10 (b1) + 18(b2) = 28, then 28 x 9(h) = 252.
3. Lastly, we need to divide 252 in half, which you can do in two ways.  You can either simply divide 252 by 2, or multiply 252 by 1/2, which both give you the answer 126 mm^2, which is your answer.

Have a great day! :)

Answer 2

b is a answer

Step-by-step explanation:

formula

=a+b/2×h