solve fast question no. 4
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Answer:
21
Step-by-step explanation:
given perimeter=50
15+10+(x+4)=50
25+(x+4)=50
x+4=50-25
x+4=25
x=25-4
x=21
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Answer:
Perimeter of ΔABC = 50 cm
AB = 15 cm
BC = 10 cm
AC = (x + 4) cm
Hence 15 + 10 + (x + 4) = 50
25 + x + 4 = 50
25 + 4 + x = 50
29 + x = 50
x = 50 - 29
x = 21
Hence side AC = 21 + 4 cm
= 25 cm
Hope it helps