We are given two bases as 3 and 11
altitude is 8
formula for area of trapezoid is given by

here a and b are two bases and h is height
plugging the given values we get
=56
Area of trapezoid = 56 unit square
Answer:
(2, 24) (6, 72) (9, 108)
Step-by-step explanation:
For this one, we know that 2 chairs use 24 screws, which must mean that for each chair, 12 screws are needed, so we can just multiply 12 by the number of chairs being built (ex. 6) to find out how many screws are needed in total. I hope this helps :)