Area of a triangle is equal to [tex]\boldsymbol{6x}[/tex] square units.
Right angled triangle
A right triangle, sometimes known as a right-angled triangle, or more technically an orthogonal triangle, formerly known as a rectangle triangle, is a triangle with one right angle or two perpendicular sides.
Area of a triangle [tex]=\boldsymbol{\frac{1}{2}bh}[/tex] where [tex]b,h[/tex] denote base and height of a right angled triangle.
[tex]b=4\\h=3x[/tex]
So,
Area of a triangle [tex]=\frac{1}{2}(4)(3x)[/tex]
[tex]=\boldsymbol{6x}[/tex] square units
So, area of a triangle is equal to [tex]\boldsymbol{6x}[/tex] square units.
Find out more information about right triangle here:
https://brainly.com/question/7894175?referrer=searchResults
