Question

Answer these three fast.​

Answer 1

1. (c) is answer. 82

2.

πR1^2 + πR2^2 = πR'^2

π ( R1^2 + R2^2 ) = πR'^2

R1^2 + R2^2 = R'^2

(b) is answer

3.

(c) is answer

Answer 2

Answer:

hii mate,✌️

Step-by-step explanation:

1. (c)82
2. (b)
3. ${r1}^{2} + {r2}^{2} = r$
4. (c)

$\cos(threta) = \frac{ \sqrt{ {b}^{2} - {a}^{2} } }{b}$

explanation in pic

HOPE it helps you

brainliest please