Question

Find the area of the triangles using Heron's formula and shade/color the triangles with the same area.
triangle 1= 8cm,15cm,22cm
triangle 2= 24cm,22cm,20cm
triangle 3= 20cm,37cm,29cm
triangle 4= 37cm,32cm,22cm
triangle 5= 32cm,25cm,18cm
triangle 6= 22cm ,22cm ,48cm
triangle 7=16cm, 20cm, 22cm
triangle 8= 29cm, 16cm, 21cm
triangle 9 -15cm, 26cm, 21cm
triangle 10= 26cm ,9cm, 29cm
triangle 11 =13cm , 15cm, 9cm
triangle 12= 25cm ,31cm ,7cm
triangle 13=9cm ,7cm, 13cm
triangle 14- 25cm ,19cm ,15cm​

Answer 1

Answer:

For an equilateral triangle with side ‘a’, area

∴ Each side of the triangle = a cm

∴ a + a + a = 180 cm

⇒ 3a = 180 cm

Now, s = Semi–perimeter

∴ Area of a triangle

∴ Area of the given triangle

Thus, the area of the given triangle

Answer 2

Answer:

the sides of three triangles are

18 cm, 15cm, 22cm

=a+b+c/2

18 + 15 + 22 /22=55/2=27.5

using the formula of heron

Step-by-step explanation:

thanks Bro like me bey