Chapter 3: Q.14 (page 164)

Calculate the value of x for the given triangle of the perimeter is $30$ cm.

Short Answer

Expert verified

The value of x be $8 c m$ .

Step by step solution

Step 1. Apply the concept of perimeter of triangle

In this type of question, use the concept of perimeter of the triangle that is the formula is

$P e r i m e t e r = s u m o f a l l s i d e s$ .

Step 2. Finding the value by explaining the statement

Since,

The sides of the triangle be $x, 10 c m, 12 c m$ .

The perimeter of the triangle be $30 c m$ .

Step 3. Finding the value of x.

Now, the value of x by using the perimeter,

Simply subtract $12$ to both sides of the equation of perimeter,

$\begin{array}{l} P e r i m e t e r = s u m o f a l l s i d e s \\ 30 = x + 10 + 12 \\ 30 = x + 22 \\ 30 - 22 = x + 22 - 22 \\ 8 = x \\ x = 8 \end{array}$

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Calculate the value of x for the given triangle of the perimeter is $30$ cm.

Short Answer

Step by step solution

Step 1. Apply the concept of perimeter of triangle

Step 2. Finding the value by explaining the statement

Step 3. Finding the value of x.

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Calculate the value of x for the given triangle of the perimeter is 30cm.

Short Answer

Step by step solution

Step 1. Apply the concept of perimeter of triangle

Step 2. Finding the value by explaining the statement

Step 3. Finding the value of x.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Theoretical and Mathematical Physics

Geometry

Calculus

Applied Mathematics

Probability and Statistics

Discrete Mathematics

Study anywhere. Anytime. Across all devices.

Calculate the value of x for the given triangle of the perimeter is $30$ cm.