Consider the triangle. (updated sorry) find line bc and angle a.

line bc is 8.66 units and angle A is 60 degrees

Step-by-step explanation:

bc^2 + 5^2 = 10^2

bc^2 = 100 - 25

bc^2 = 75

bc = 8.660 units

sum of interior angles = 180 deg

30 deg + 90 deg + angle a = 180 deg

120 deg + angle a = 180 deg

angle a = 180 - 120

angle a = 60 deg

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.

there is no points to select.

step-by-step explanation: