1.

In a rhombus, if the diagonals are 30 cm and 40 cm, find its perimeter

Answer»

D1=30
D2=40
A/C to Pythagoras THEOREM,
SIDE of rhombus =√15^2++√20^2
√225+400
√625=25
perimeter = 4×side
= 4 ×25= 100



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