so 4✓133 cm
Given:
b= 12 cm
c= 26 cm
a=?
Formula we need is Pythagorean Theorem,
a²+b²=c²
a²+b²-b²=c²-b²
a²=c²-b²
a²=(26cm)²-(12cm²)
a²=676cm²-144cm²
a²=532cm²
a=✓532cm²
a=✓(4)(133) cm²
a=2✓133 cm
correct me if I'm wrong.
