Question

ABC is a triangle where AB=50cm,BC=30cm and AC=42cm.
find the area of the triangle giving the answer to the nearest square centimeter.​

Answer 1

Answer:

630 cm sqare

the are of the triangle 1/2 base * height ..

by Pythagoras theorem base and height are 30 and 42

Answer 2

Answer:

629 cm²

Step-by-step explanation:

Semi perimeter (S) = (a+b+c) / 2

                               = (30 + 42 + 20) / 2

                               = 122 / 2

                               = 61

From Heron's formula,

Area (A) = $\sqrt(s-a)(s-b)(s-c)$

             = $\sqrt61(61-30)(61-42)(61-50)$

             = $\sqrt(61)(31)(19)(11)$

             = 628.66

             = 629 (rounding off)

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