The expression \dfrac12bh
2
1bhstart 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, start text, space, c, m, end text and a height of 4 \text{ cm}4 cm4, start text, space, c, m, end text?
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what
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the area of a triangle:A=%281%2F2%29bh
if b=7cm and h=4cm, we have
A=%281%2F2%297cm%2A4cm
A=%281%2Fcross%282%29%297cm%2Across%284%292cm
A=7cm%2A2cm
A=14cm%5E2
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