nook4boo
25.09.2019 •
Mathematics
How to find the unknown dimension of a triangle? (see problem in picture below)
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Ответ:
Since we know the perimeter and two sides, we can plug these in a solve for the last side
60=23+17+s3
60=40+s3 (combine like terms)
20=s3 (subtract 40 from both sides)
So then side c would be equal to 20 m
Hope this helps :)
Ответ:
We will use the property :
sum of interior angles on same side of transversal =180
(8x-14) + (2x+54)=180
10x+40=180
10x=140
x=14