Answer:
Step-by-step explanation:
a^2 + B^2 = C^2
and all angle added together should make 180
the left box should be 20 and the right box should 17.321
15,360
15 x 4 = 60 x 4 = 240 x 4 = 960 x 4 = 3,840 x 4 = 15,360
<u>Where,</u>
