Question

if length of equal sides of of on isolation angke, 15cm and it's perimeter is 40cm then find the third of the triangle
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Answer 1

Given :-

Length of equal sides of of on isolation angle = 15 cm

Perimeter of the triangle = 40 cm

To Find :-

The measure of the third of the triangle.

Analysis :-

Consider the third length as a variable.

Make an equation accordingly.

Then you can easily find the value of the variable.

Solution :-

Let the third side be 'x'.

Given that,

Length of each two side = 15 cm

Perimeter = 40 cm

Making an equation accordingly,

15 + 15 + x = 40

30 + x = 40

By transposing,

x = 40 - 30

x = 10 cm

Therefore, the third side is 10 cm.

Answer 2

Answer:

✯ Given :-

• Length of equal sides of an isolation angle is 15 cm and its perimeter Is 40 cm.

✯ To Find:-

• What is the value of third side of a triangle.

✯ Solution :-

» Let, the third side of a triangle be x

» Length of the two side is 15 cm and its perimeter Is 40 cm.

➣ According to the question,

⇒ 15 + 15 + x = 40

⇒ 30 + x = 40

⇒ x = 40 - 30

➠ x = 10

$\therefore$ The third side of a triangle is 10 cm .

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