1.

the perimeter of a rhombus is 60 CM if one of its diagonal is 18 cm long find the length of the Other diagonal and the area of Rhombus​

Answer»

ANSWER:

Diagonal 2 = 28.6181760425 cm

Area o f Rhombus =257.56 cm^2

Step-by-step explanation:

=)PERIMETER of Rhombus = 4√(a/2^2+b/2^2)

=)60 cm = 4√(a/2^2+b/2^2)

=)60/4 cm = √(a/2^2+b/2^2)

=)15 cm = √(81+b/2^2)

=)15^2 cm = 81+b^2/4

=)225*4 cm = 81+b^2

=)900 cm = 81+b^2

=)900-81 cm = b^2

=)819 cm = b^2

=)√819 cm = b

=)28.6181760425 cm = b

Area of Rhombus = (Diagonal 1 * Diagonal 2)/2

                             =(18 cm * 28.6181760425 cm)/2

                             =257.56 cm^2                


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