Question

Well asap due today pls

Answer 1

96 in²

Explanation:

Length of Semiperimeter

`\displaystyle s=(1)/(2)(a+b+c)=(1)/(2)(12+16+20)=(1)/(2)(48)=24`

Area of Triangle w/Heron's Formula

`A=√(s(s-a)(s-b)(s-c))=√(24(24-12)(24-16)(24-20))=√(24(12)(8)(4))=√(9216)=96`

Hence, the area of the triangle is 96 in².