Question

if the sides of a triangle are 12cm , 16 cm , and 20 cm then finds its area . also determine which type of triangle this is ?​

Answer 1

Step-by-step explanation:

Given

sides, 12 cm , 16 cm ,20 cm

the triangle formed is scalen triangle

so

Area = √{s×(s-a)×(s-b)×(s-c)}

s = (12+16+20)/2

= 48/2

= 24

substitute the value of S in above formulae, we get

Area = √{s×(s-a)×(s-b)×(s-c)}

= √{24×(24-12)×(24-16)×(24-20)}

= √{24×12×8×4}

= √9216

= 96 m^2

hence area = 96 m^2 and triangle is ' Scalen triangle'.

Answer 2

Answer:

scalene triangle , 96 cm^2.

Step-by-step explanation:

a triangle which has different magnitude for all the three sides is called as a scalene triangle ( 12,16,20 are different magnitudes so the given triangle is scalene

For the area of the triangle view this picture