Madeline would need to use 0.82 gallon of paint
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
Given the scale 1 cm = 1.5 ft.
(1 cm)² = (1.5 ft.)²; 1 cm² = 2.25 ft²
The area of the figure = area of trapezoid + area of triangle
Area = (1/2) * (10) * (14 + 4) + (1/2) * 14 * (18 - 10) = 146 cm²
146 cm² = 146 cm² * 2.25 ft² per cm² = 328.5 ft²
1 gallon = 400 ft², hence:
328.5 ft² = 328.5 ft² * 1 gallon per 400 ft² = 0.82 gallon
Madeline would need to use 0.82 gallon of paint
Find out more on equation at: https://brainly.com/question/2972832
