The expression that is equivalent to 4(x+2) is 4(x)+4(2)
What is the question asking?
Use the formula for area of a triangle:
Area = 1/2 x base x height.
Fill in what you know:
40 = 1/2 x 20 x height
Multiply both sides by 2:
80 = 20 x height
Divide both sides by 20
Height = 4 m
X= 3.124 bc ur using Pythagoras Theorem so a squared + b squared = c squared :)
