Question

Plz help with this I really need it Thank you. 15 points! find the Lengths.

Answer 1

Answer:

Step-by-step explanation:

b=4x-1

c=3x=21

;4x-1+3x+21+90=180

because all the angles in a triangle is 180

;(4x+1)+(3x+21)+90=180

;4x+3x-1+21=90

7x+20=90

7x=70

x=10

;b=4x-1=4(10)-1=40-1=39

;b=39

c=3x+21=3(10)+21=30+21=51

;the angles are

b=39

c=51