The perimeter of the figure is 69 cm. The value of x is __ cm.
1️⃣ 7
2️⃣ 11
3️⃣ 21
4️⃣ 10
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Answered by
51
Answer: x = 10 (option 4)
Step-by-step explanation:
Perimeter of the figure = Total boundary length of the figure
ie, 69 = x+1 + x+2 + 2x+1 + x+3 + x+2
ie, 69 = 6x + 9
ie, 6x + 9 = 69
ie, 6x = 69 - 9
ie, 6x = 60
ie, x = 60/6
ie, x = 10
So, your answer is option (4)
HOPE IT HELPS.........
Answered by
70
The above is a figure with five sides. The perimeter given is 69 cm. The sides are in variable of x and we need to find the value of x here.
Perimeter of a figure = Length of the boundaries/Sum of all it's sides. Then,
⇒ Sum of all sides of the figure = 69 cm
⇒ x + 1 + x + 2 + x + 3 + 2x + 1 + x + 2 = 69 cm
Combining all the terms with x and the constant terms,
⇒ 6x + 9 = 69 cm
⇒ 6x = 60 cm
⇒ x = 10 cm.
The required value of x is 10 cm (Option 4)
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