Question

what is the value of Q

Answer 1

Step-by-step explanation:

10²+s²=r² => 100=r²-s²

4²+s²=q² => 16=q²-s²

14²=r²+q² => 196=r²+q²

subtract all equations....

100-16-196=r²-s²-q²+s²-r²-q²

-112=-2q²

112=q²

q=√56

q=√7×(2²)×2

q=2√14

$<marquee> thus option b is correct....$