for a right triangle abc at a with ab=10cm, on ac extending towards c take point d such that cd=8cm, ac=15cm. on the half-plane of the edge ad containing the point b, draw ed perpendicular to ad so that angle acb = angle dec. de

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step-by-step explanation:

given expression is

we have radical  

we need to select an option that has same radical

(a)  

this expression has cube root instead of square root . so it is not a like radical.

(b)

y is included inside the radical. so it is not a like radical.

(c)

this expression has cube root instead of square root . so it is not a like radical.

(d)

5 is inside the radical square root. so it is   a like radical.