Question

5. Find the area of a triangle if its sides are
(i) 21 cm, 17 cm and 10 cm
(iii) 52 cm, 60 cm and 56 cm
(ii) 17 cm, 25 cm and 26 cm
(iv) 42 cm, 39 cm and 45 cm.​

Answer 1

Step-by-step explanation:

Hope it's helpful.

Make brain list.

Answer 2

Answer:

heron's formula you can use