Answer:
Perimeter = side a+ side b+ side c
Explanation:
perimeter= side a+ side b+ side c=
3 X -7= -21
2 X + 5= +10
-x+ 11= -12
-21+ +10 + -12= + 43
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Answer:
Perimeter = side a+ side b+ side c
Explanation:
perimeter= side a+ side b+ side c=
3 X -7= -21
2 X + 5= +10
-x+ 11= -12
-21+ +10 + -12= + 43