If ∠a = 35°, what does ∠b equal? ∠b = ? °

Hello!

As you can see, b and a appear to form a right angle. This means they are complementary, and their angle measures add up to 90°. Le'ts subtract 35 from 90 to find b.

90-35=55

Therefore, .

I hope this helps!

umumumumum

im not sure

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )