Saved Bookmarks
| 1. |
A triangle having sides a , b and c if s-a =4cm ,s-b=8cm and s-c=12 the find the value of a b c |
|
Answer» Answer: Sides of the triangle are 20 cm, 16 cm, 12 cm Step-by-step explanation: FORMULA used: If a, b, c are sides of triangle then s=(a+b+c)/2 s-a=4 cm s-b=8 cm s-c=12 cm Adding these we get s+s+s-a-b-c = 24 3s-(a+b+c) =24 3s-2s = 24 s = 24 Now, s-a=4 24 - a =4 a = 24 - 4 = 20 cm s-b=8 24 - b = 8 b = 24 - 8 = 16 cm s - c = 12 24 - c = 12 c = 24 -12 = 12 cm |
|