The expression \dfrac12bh
2
1
bhstart fraction, 1, divided by, 2, end fraction, b, h gives the area of a triangle where bbb is the base of the triangle and hhh is the height of the triangle.
what is the area of a triangle with a base of 7 \text{ cm}7 cm7, space, c, m and a height of 4 \text{ cm}4 cm4, space, c, m?

For this case, the first thing we must do is use the given expression.

 We have then:

 A = (1/2) * (b) * (h)

 Substituting the values:

 A = (1/2) * (7) * (4)

 A = 14cm ^ 2

 the area of a triangle with a base of 7 cm and a height of 4 cm is:

 A = 14cm ^ 2

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