xviii) If a = 16 cm, C = 30 cm and 2C = 90°, then the length of the third side of a triangle is
a) 34 cm
b) 32 cm
c) 31 cm
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The right answer is 34 ....
By Pythagoras theorem
→ ( 16)²+ (30)² =>(34 )²
This form the Pythagoras triplet
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