How do you do the 7th one plz tell fast plz
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8 cm
Step-by-step explanation:
We know that the diagonals bisect each other.
Therefore, AO = 1/2 (AC) = 3 cm
In triangle DOC, according to Pythagoras theorem,
DO^2 + OC^2 = CD^2
DO^2 + 3^2 = 5^2
DO^2 + 9 = 25
DO^2 = 16
DO = 4 cm
Hence, BD = 2DO = 8 cm
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