There are four equilateral triangles with sides 95 cm, 76 cm, 57 cm and 152 cm. What maximum size scale (in cm) can measure all of them exactly?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 19 .
Find greatest common divisor of 95, 76, 57 and 152.
GCD(95, 76) = 19
GCD(19, 57) = 19
GCD(19, 152) = 19
Maximum scale = 19 cm