Question

476 Marks boole Calculate the area of this triangle. 17 cm 8 cm 15 cm

Answer 1

Answer:

Step-by-step explanation:

sides =8 cm, 17 cm and 15 cm

Area of triangle by Hero's Formula,

S=a+b+c/2

S=17+8+15/2

S=40/2

S=20

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

A=$\sqrt{20(20-17)(20-8)(20-15)}$

A=$\sqrt{(20)(3)(12)(5)}$

A=$\sqrt{3600}$

A=60 $cm^{2}$