Question

A triangle has a perimeter 20.0 1 cm if its two sides are 6.38 cm and 5.0 67 cm find the third side

Answer 1

Solution

Given :-

• A triangle has a perimeter 20.0 1 cm
• two sides are 6.38 cm and 5.0 67 cm

Find :-

• Third Side of triangle

Step - by - Step - Explanation

Using Formula

★ Perimeter of triangle = Sum of all side .

So, Let

• Third Side of triangle be x cm

Assume that, ∆ABC ,

Where,

• AB = 6.38 cm
• BC = 5.067 cm
• CA = x cm

So,

==> perimeter of triangle = AB + BC + CA

==> 20.01 = 6.38 + 5.067 + x

==> 20.01 = 11.447 + x

==> x = 20.01 - 11.447

==> x = 8.563 cm

Hence

• Third Side of triangle ∆ABC will be CA(x) = 8.563 cm

_______________

Answer 2

Answer:

✡ Given ✡

⬛ A triangle has a perimeter is 20.01 cm

⬛ Its sides are 6.38 cm and 50.67 cm

✡ To Find ✡

⬛ The third side = ?

✡ Formula Used ✡

⭐ $\text{\large\underline{\pink{Perimeter of triangle = Side of all side}}}$

✡ Solution ✡

⬛ The three sides are ∆ABC.

( where,

⬛ AB = 6.38 cm

⬛ BC = 5.67 cm

⬛ CA = x cm

➡ According to the question,

Perimeter of the triangle = AB + BC + CA

✏ Putting the value we get,

=> 20.01 = 6.38 + 5.067 + x

=> 20.01 = 11.447 + x

=> x = 11.447 - 20.01

=> x = $\bold{\large{\fbox{\color{blue} {8.563 cm}}}}$

∴The third side of a triangle whose angle is ∆ABC is 8.563 cm.

Step-by-step explanation:

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