Question

considerando a figura, determine:
a) a medida a
b) a medida b
c) a medida c.

Answer 1

a2 = (2 ) 2 + (4 ) 2
a2 = 4 + 16
a2 = 20
a= √20
a = 2√5

b2 = (8)2 + (4 ) 2
b2 = 64 + 16
b2 = 80
b= √80
b= 4√5

c2 = ( 2√5 ) 2 + ( 4√5 ) 2
c2 = 20 + 80
c2 = 100
c = √100
c = 10