Emma is going camping. each triangle on her tent is 5 feet tall. the square base 4 feet wide. what is the surface area of her tent

10ft squared

I think because 5 times  4 is 20 so 20 divided by 2 is 10  dividing braces of triangle 

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.