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Math·Geometry and Trigonometry·Lines, angles, and triangles

easy

In an isosceles triangle, the length of the base is $30\sqrt{6}$ centimeters and the corresponding height is $20\sqrt{6}$ centimeters. The length of one of the other sides of this triangle is $a\sqrt{6}$ centimeters. What is the value of $a$?

A

50

B

35

C

25

D

15