Of the 500 seventh grade students and 250 eighth grade students at Bailey Middle School, 90 students will be chosen at random to attend an assembly. Which of the following would be a representative sample of the number of seventh and eighth grade students at the school?

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2