Question

Find the area of triangle ABC.​

Answer 1

Answer:

1/2 * base * height this is the formula to calculate area of triangle

Answer 2

Step-by-step explanation:

here, area A =

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

where

$s = \: 0.5(a + b + c)$

and consider

a = AB = 4.4721

b = BC = 5.8309

c = CA = 9.8994

so ,

s = 0.5 (4.4721+5.8309+9.8994)

s = 0.5 ( 20.2024)

s = 10.1012

so

(s - a) = (10.1012 - 4.4712) = (5.6291)

(s - b) = (10.1012 - 5.8309) = (4.2703)

(s - c) = (10.1012 - 9.8994) = (0.2018)

now , A =

$\sqrt{10.1012(5.6291)(4.2703)(0.2018)}$

A =

$\sqrt{49.0038}$

so ,

A = 7.00027

A = 7 (approximate)