b=8h=45

The area of a triangle is equal to 12 the base times the height.

12⋅(base)⋅(height)

Substitute the values of the base b=8 and height h=45 into the formula for the area of a triangle.

12⋅8⋅45

Factor 2 out of 8.

12⋅(2(4))⋅45

Cancel the common factor.

12⋅(2⋅4)⋅45

Rewrite the expression.

4⋅45

4⋅45

Multiply 4 by 45.

180

Find the Area triangle (45)(8)