What is the length of HA?

your answer will be 15

Step-by-step explanation: so for the smaller triangle you want to take the edges and just add them up to get the equivalent size for your bigger triangle

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

answer is c

step-by-step explanation:

81/12=324/x

x=48