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arppy
23.01.2020 •
Mathematics
Find the sides of a triangle if two of its sides are equal, the third side is 1 1 3 cm longer than the others, and its perimeter is 5 2 5 cm.
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Ответ:
Step-by-step explanation:
Let x be the equal sides of the triangle .
The , the third side would be x+113 cm.
The perimeter is the sum of all sides of a triangle.
So , The perimeter of triangle would be x+x+(x+113)= 3x+113 --------(1)
Since , it is given that the perimeter of triangle is 525. -----(2)
So from (1) and (2) , we have
Then, third side =![137\dfrac{1}{3}+113=250\dfrac{1}{3}\ cm](/tpl/images/0467/9391/bdfbd.png)
Hence , the sides of a triangle are:![137\dfrac{1}{3}\ cm,\ 137\dfrac{1}{3}\ cm,\ 250\dfrac{1}{3}\ cm](/tpl/images/0467/9391/95a3f.png)
Ответ: