# the perimeter of a triangular field is 280 dm. If two of its sides are 78 dm and 50 dm,find the length of the perpendicular on the side of length 50 dm from the opposite vertex.

### Asked by saanvichhikara07 | 23rd Sep, 2020, 08:10: AM

Expert Answer:

### The question must be:
The perimeter of a triangular field is 240 dm. If two of its sides are 78 dm and 50 dm, find the length of the perpendicular on the side of length 50 dm from the opposite vertex.
Solution:
Let the third side be 'a'
Perimeter = 240
78+50+a = 240
a = 112
Using Heron's formula, we have

### Answered by Renu Varma | 23rd Sep, 2020, 11:49: AM

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