Question

a=8 b=8 c=4 find using herons formula

Answer 1

Semi - Perimeter = ( 8 + 8 + 4)/2 
  
                            = 20/2 

                            = 10 units

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Applying heron's formula,

$\sqrt{s(s -a)(s - b)(s- c)}$

$\sqrt{10(10 - 8)(10 - 8)(10 - 4)}$

$\sqrt{10(2)(2)(6)}$

$4 \sqrt{15} unit^2$

i hope this will help you

(-:

Answer 2

Heya !!!

A = 8 , B = 8 and C = 4

Semi Perimeter ( S) = 1/2 × ( A + B + C )

=> 1/2 × ( 8 + 8 +4)

=> 20/2 = 10 units.

Now,

( S - A) = 10 -8 = 2 units

( S - B) = 10 -8 = 2 units

And,

( S - C) = 10 -4 = 6 units.

Therefore,

Area = ✓ S ( S - A ) × ( S - B) ( S-C)

=> ✓ 10 × 2 × 2 × 6

=> ✓240 units.

=> ✓2 × 2 × 2 × 2 × 3 × 5

=> 4✓15 units..