What is the area of a triangle with base of 20 feet and a vertical height of 40 feet?
A=200 square ft
A=800 square ft
A=400 square ft
A-600 square ft

A = 400 ft²

Step-by-step explanation:

The area (A) of a triangle is calculated as

A = bh ( b is the base and h the vertical height ) , then

A = × 20 × 40 = 10 × 40 = 400 ft²

the correct answer is b) histograms can be used to exhibit the shape of distributions. this is because histograms count the frequency of each possible answer, so one is able to see which results are more common and which are less common.