# Observe all the four triangles FAB, EAB, DAB and CAB as shown in Fig. 9.28: All triangles may not have the same perimeter. Is the given statement true or false?

**Solution:**

The figure represents four triangles FAB, EAB, DAB and CAB

Given, all triangles may not have the same perimeter.

We have to determine if the given statement is true or false.

From the figure,

We observe that all triangles have the same base line

Their other lines are not equal to each other.

Therefore, the triangles may not have the same perimeter.

**✦ Try This****: **The area of square is 100 cm². Find its side.

Given, the area of square is 100 cm²

We have to find the side of the square.

Area of square = (side)²

(side)² = 100

Taking square root,

side = 10 cm

Therefore, the side of the square is 10 cm.

**☛ Also Check: **NCERT Solutions for Class 7 Maths Chapter 11

**NCERT Exemplar Class 7 Maths Chapter 9 Problem 65**

## Observe all the four triangles FAB, EAB, DAB and CAB as shown in Fig. 9.28: All triangles may not have the same perimeter. Is the given statement true or false?

**Summary:**

The given statement, “Observe all the four triangles FAB, EAB, DAB and CAB as shown in Fig. 9.28: All triangles may not have the same perimeter” is true.

**☛ Related Questions:**

- In Fig. 9.29 ratio of the area of triangle ABC to the area of triangle ACD is the same as the ratio . . . .
- Triangles having the same base have equal area. Is the given statement true or false
- Ratio of circumference of a circle to its radius is always 2π : 1. Is the given statement true or fa . . . .

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