Find tha area of a triangle two sides of which are 18cm and 10cm tha p

1.	Find tha area of a triangle two sides of which are 18cm and 10cm tha perimeter is 42cm
Answer» Perimeter=18+10+x=42. =42-28=x =14Find the semi perimeter by formulaa+b+c÷2=42÷2=21Area=√s(s-a)(s-b)(s-c) =√21(21-18)(21-10)(21-14) = √21(3)(11)(7) =√7×3×3×11×7 =7×3√11 =21√11 I think it helps you?

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