If the area of a square is 225 m 2- then its perimeter isa 15 mb 60 mc 225 md 30 m

Let a be the side of the square. Then Area of square = a2 #8658; 225 = a2 #8658; a2 = 152 #8658; a = 15 m Perimeter of the square = 4a = 4 #215; 15 ...

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Byju's Answer

Standard IX

Mathematics

Geometric Estimation Value of Square Root

If the area o...

Question

If the area of a square is 225 m², then its perimeter is

(a) 15 m (b) 60 m (c) 225 m (d) 30 m

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Solution

Let a be the side of the square. Then
Area of square = a²
$⇒$ 225 = a²
$⇒$ a² = 15²
$⇒$ a = 15 m
Perimeter of the square = 4a = 4 $×$ 15 = 60 m
Hence, the correct option is (b).

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If the area of a square is 225 m2, then its perimeter is (a) 15 m (b) 60 m (c) 225 m (d) 30 m

Let a be the side of the square. Then Area of square = a2 ⇒ 225 = a2 ⇒ a2 = 152 ⇒ a = 15 m Perimeter of the square = 4a = 4 × 15 = 60 m Hence, the correct option is (b).

If the area of a square is 225 m², then its perimeter is

(a) 15 m (b) 60 m (c) 225 m (d) 30 m

Let a be the side of the square. Then
Area of square = a²
$⇒$ 225 = a²
$⇒$ a² = 15²
$⇒$ a = 15 m
Perimeter of the square = 4a = 4 $×$ 15 = 60 m
Hence, the correct option is (b).