Question

Find the area of a triangle having sides 15cm, 14cm and 13cm.​

Answer 1

Answer:

first side is 15 CM

second side is 14 cm

third side is 13 cm

semiperimeter =

$\frac{a + b + c}{2}$

$\frac{15 + 10 + 13}{2}$

$\frac{38}{2}$

18

using heron's formula

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

$\sqrt{18(18 - 15)(1 8 - 14)(18 - 13}$

$9 \sqrt{10{cm}^{2} }$