Pearson Geometry Common Core, 2011
PG
Pearson Geometry Common Core, 2011 View details
Chapter Review
Continue to next subchapter

Exercise 5 Page 677

To find the area of the triangle, calculate half of the product of the base and the height.

10m^2

Practice makes perfect
The area of a triangle is half the product of its base and its height. The height is the altitude that is perpendicular to whichever side is being used as the base.
In the given triangle, we can see that the base is 4m and that the height is 5m. We can substitute these two values in the formula for the area of a triangle and simplify.
A=1/2bh
A=1/2( 4)( 5)
Evaluate right-hand side
A=1/2(20)
A=20/2
A=10
The area of the triangle is 10m^2.