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A triangle has base 10 cm long and the b...

A triangle has base 10 cm long and the base angles of `50^(@) and 70^(@)`. If the perimeter of the triangle is `x+y cos z^(@)` where `z in (0, 90)` then the value of `x+y+z` equals :

A

60

B

55

C

50

D

40

Text Solution

Verified by Experts

The correct Answer is:
D
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