# If p squares of each side 1mm makes a square of side 1cm, then p is equal to

(a) 10

(b) 100

(c) 1000

(d) 10000

**Solution:**

Given, p squares of each side 1mm makes a square of side 1cm

We have to find the value of p.

Area of square = (side)²

Area of square with side 1 cm = (1)² = 1 cm²

Area of square with side 1 mm = (1)² = 1 mm²

Given, p × area of square with side 1 mm = area of square of side 1 cm

We know, 1 cm = 10 mm

So, p × 1mm² (10²)mm²

p = 100/1

Therefore, p = 100

**✦ Try This: **If n squares of each side 2mm makes a square of side 20 mm, then n is equal to

Given, n squares of each side 2mm makes a square of side 100 mm

We have to find the value of n.

Area of square = (side)²

Area of square with side 2 mm = (2)² = 4 mm²

Area of square with side 20 mm = (20)² = 400 mm²

Given, n × area of square with side 2 mm = area of square of side 20 mm

So, n × 4 mm² = 400 mm²

n = 400/4

n = 100

Therefore, n = 100

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

**NCERT Exemplar Class 7 Maths Chapter 9 Problem 26**

## If p squares of each side 1mm makes a square of side 1cm, then p is equal to (a) 10, (b) 100, (c) 1000, (d) 10000

**Summary:**

If p squares of each side 1mm makes a square of 1cm, then p is equal to 100.

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