Question

Can you please help me ??

Answer 1

An obtuse triangle has a obtuse angle that measures larger than 90 degrees.
 
 You have to apply the Phytagorean Teorem, which is:
c^2 = a^2 + b^2 
 c=√(a^2 + b^2)
 
 "c" is the hypotenuse.
 "a" and "b" are the legs of the triangle (10 inches and 15 inches).
Let's substitute those values in the equation:
 
 c=√(a^2 + b^2)
 c=√(10^2 + 15^2)
 c=√325
 c=18 inches
 
 What is the smallest possible whole-number length of the unknown side?
 
 It is the next largest integer greater: 19 inches.