Answer:
[tex]7.[/tex] [tex]a=94[/tex]º
[tex]8.[/tex] [tex]b=12[/tex]
Step-by-step explanation:
I'll break it down into 2 separate parts for each letter
7. a
a is an angle and in similar triangles the corresponding angle will be equal and in this case the corresponding angle is 94º so a=94º
8. b
To find b we can make a ratio with the corresponding sides. B corresponds with 21 and 20 corresponds with 35
[tex]\frac{b}{21} =\frac{20}{35}[/tex]
Cross multiply
[tex]35b=21(20)[/tex]
[tex]35b=420[/tex]
Divide both sides by 35
[tex]b=12[/tex]
I hope this helps
