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Chapter 3: Q33. (page 127)

Geometry Find the value of x for the given triangle, rectangle or square.

Perimeter = 40 units

Short Answer

Expert verified

The value of x is 11.

Step by step solution

01

Step-1 – Given

Perimeter = 40 units

Length = 7 units and width = units

02

Step-2 – To determine

We have to find the value of the x for the given rectangle.

03

Step-3 – Calculation

The equation of the perimeter will be,

2[7+(x+2)]=40

2[7+(x+2)]=402(7+x+2)=40[combineliketerms]2(x+9)=402x+18=40[evaluatepower]2x+18鈭�18=40鈭�18[subtract18fromeachside]2x=222x梅2=22梅2[divideeachsideby2]x=11

Hence, the required value of x is 11.

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