Question

(2) Length of a diagonal of a square is 15 J2 cm. Find its perimeter.
(A) 15 cm
(B) 30 cm
(C) 45 cm
(D) 60 cm​

Answer 1

Answer:

(D) 60 cm

Step-by-step explanation:

$length \: of \: diagonal \: of \: square = (side)\sqrt{2}$

$15 \sqrt{2 } = (side) \sqrt{2}$

$(side) = 15$

$perimter \: of \: square \: = 4 \times (side)$

$= 4 \times 15$

$= 60 \: cm$