Question

a triangle have sides of 25 mm,35 mm,and 50mm.find its area

Answer 1

Answer:

area of Δ = √[s(s-a)(s-b)(s-c)]

here S = semiperimeter.

then S = 25+35+50/2 = 110/2= 55

then Ar = √[55(55-25)(55-35)(55-50)] = √55(30×20×5)= √16500 = 406.2 mm^2 answer