Question

maths lesson 12 herons formula
find the area of triangle shoes sides are 10cm 24cm 26cm

also use

area of triangle
perimeter of the triangle




herons formula
area of triangle √s(s-a) (s-b) (s-c)
where s ( semi perimeter)
s =a+b+c
2
​

Answer 1

Answer:

Step-by-step explanation:

10cm ; 24cm; 26cm

s= (a+b+c)/2 = (10+24+26)/2 = 60/2 = 30

Area of triangle = √s(s-a) (s-b) (s-c) = √30(30-10)(30-24)(30-26)

√30*20*6*4 = √3600*4 = 60*2 = 120cm²

Perimeter = 2s = 2(30) = 60cm

@request Mark me as Brainiest

Answer 2

I side of triangle (a) =10cm

II side of triangle(b) =24cm

III side of triangle (c) =26cm

Area of triangle

semi perimeter =a+b+c/2

10+24+26/2

60/2

=30

by heron's formula =√s(s-a) (s-b) (s-c)

=√30(30-10) (30-24) (30-26)

=√30(20) (6) (4)

=√3×5×2 ×2×2×5×3×2×2×2

=5×3×2×2×2=120