Question

the
are
(4)
Find the area of
triangle the sides
4:5:6cm​

Answer 1

Step-by-step explanation:

to find the area of triangle when sides are given we use the herons formula

area = √s (s-a)(s-b)(s-c)

s = (a+b+c)/2

a, b, c are sides of the triangle

$s = \frac{4 + 5 + 6}{2} = \frac{15}{2} = 7.5 \\ area = \sqrt{s(s - a)(s - b)(s - c)} \\ = \sqrt{7.5(7.5 - 4)(7.5 - 5)(7.5 - 6)} \\ = \sqrt{7.5 \times 3.5 \times 2.5 \times 1.5} \\ = \sqrt{98.4375} \\ = 9.9 \: approx$

hope you get your answer