Question

find the perimeter of an isosceles triangle whose side r 5cm each and third side is 7cm​

Answer 1

$\huge\underline\mathbb {SOLUTION:-}$

Answer:

• Perimeter of the triangle is 17 Cm.

Given:

• Two equal sides of isosceles triangle is 5 Cm
• Third side of isosceles triangle is 7 Cm

Need To Find:

• Perimeter of the triangle = ?

Explanation:

$\underline \mathsf \green {Formula \:used\:here\: :-}$

• Perimeter of triangle = Sum of all three sides.

Now, Put the values according to given formula:

$\underline \mathsf \green {We\:Get\: :-}$

Perimeter of triangle = Sum of all three sides.

$\implies$Perimeter of triangle = 5 + 5 + 7

$\implies$Perimeter of triangle = 17 Cm

$\underline \mathsf \green {Therefore\: :-}$

The perimeter of the triangle = 17 Cm.

Additional Information:

What is Triangle?

• Triangle is a closed figure.
• A triangle has two sides, three vertices and three angles.
• The sum of the lengths of any two sides of a triangle is greater than the length or third side.
• The sum of three angles of a triangle is equal to 180°.

There are six types of triangle.

★ On the basis of sides:

1) Scalene triangle:

• All the sides are different in length.

2) Isosceles triangle:

• Any two sides are equal.

3) Equilateral triangle:

• All three sides are equal.

★ On the basis of angles:

1) Acute angled triangle:

• Each angle is acute.

2) Right angled triangle:

• Any one angle is equal to 90°.

3) Obtuse angled triangle:

• Any one angle is obtuse.

Answer 2

Answer:

5+5+7=17cm is the perimeter

Step-by-step explanation:

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