Calculate ΔRST

In a right triangle RST with a right angle at the vertex T, we know the lengths of two sides: s = 7.8 cm and t = 13 cm; calculate the third side r.

Final Answer:

r =  10.4 cm

Step-by-step explanation:

s=7.8 cm t=13 cm  T=90° => t>s, t>r  t2 = r2 +s2  r=t2s2=1327.82=10.4 cm



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