The perimeter of a triangle in which all the angles are congruent and one of the side lengths is equal to 4 cm is:

8 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

12 cm

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

10 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

9 cm

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is B
12 cm

Since all the angles are congruent, each of the angles will be equal to $60^{\circ}$ . Thus, it is an equilateral triangle.
Perimeter of an equilateral triangle = 3 $\times$ side length = 3 $\times$ 4 = 12 cm.

Suggest Corrections

Similar questions

Q. The base and altitude of an isosceles triangle PQR is given by 8cm and 12cm.Then the length of one of the equal side is equal to:

The longest side of a triangle is 4 times the shortest side and the third side is 4 cm shorter than the longest side. If the perimeter of the triangle is at least 59 cm, then the minimum length of the shortest side is

$△$ ABC is congruent to $△$ PQR. What is the perimeter of $△$ PQR?

The lengths of a triangle are $6 c m, 8 c m$ and $10 c m$ . Then the length of perpendicular from the opposite vertex to the side whose length is $8 c m$ is:

If two sides of a triangle are 8 cm and 6 cm and its perimeter is 26 cm. Find the third side of the triangle.

Join BYJU'S Learning Program

The perimeter of a triangle in which all the angles are congruent and one of the side lengths is equal to 4 cm is:

The correct option is B 12 cm Since all the angles are congruent, each of the angles will be equal to 60∘. Thus, it is an equilateral triangle. Perimeter of an equilateral triangle = 3 × side length = 3 × 4 = 12 cm.

The correct option is B
12 cm

Since all the angles are congruent, each of the angles will be equal to $60^{\circ}$ . Thus, it is an equilateral triangle.
Perimeter of an equilateral triangle = 3 $\times$ side length = 3 $\times$ 4 = 12 cm.