Acellus Find the perimeter of this triangle. 7 ft 8 ft 9 ft P = [?] ft Enter
2 answers:
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Answer:
y = 9
Step-by-step explanation:
Given
4 + = 7
Isolate the term in y by subtracting 4 from both sides
= 3 ( multiply both sides by 3 )
y = 3 × 3 = 9