Question

The measure of three sides of a triangle are 7 cm, 24 cm and 25 cm find area of a triangle.​

Answer 1

Answer:

answer is==84cm²

Step-by-step explanation:

Let a=7cm,b=24cm,c=25cm..

$s = a + b + c \div 2$

s=7+24+25/2

s=56/2

s=28

Area of triangle is =

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

$\sqrt{28(28 - 7)(28 - 24)(28 - 25)}$

$\sqrt{28 \times 21 \times 4 \times 3}$

$\sqrt{84 \times 84}$

=84 cm².....