I am in 7 grade math

User Generated

Oht3060

Mathematics

Description

What is the area of (a triangle)ABC with vertices A(2,3), B(17,11) and C(17,3)?

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Explanation & Answer

Area = [Ax(By-Cy)+Bx(Cy-Ay)+Cx(Ay-By)]/2

putting values

Area = [2(11-3)+17(3-3)+17(3-17)]/2

Area = [2(8)+0+17(-14)]/2

Area = [16-238]/2

Area = 222/2

Area = 111


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