What is the length of leg s of the triangle below? 459
872
90+
45
A. 8
B. v
C. 8-12
D. 4.2
E. 1
F. 2

option A

Step-by-step explanation:

take 45 degree as reference angle

using sin rule

sin 45 = opposite / hypotenuse

= s/

= s

root 2 and root 2 gets cancel

8 = s

the sum of the lengths of any two sides of a triangle is greater than the length of the third side. if you take the three sides of a triangle and add them in pairs, the sum is greater than (not equal to) the third side. if that is not true, then it is not possible to construct a triangle with the given side lengths.

step-by-step explanation:

add an image

step-by-step explanation: