Answer:
c = 101
Step-by-step explanation:
We can use the Pythagorean theorem to solve
a^2+b^2 =c^2
20^2 + 99^2 = c^2
400 +9801=c^2
10201 = c^2
Take the square root of each side
sqrt(10201) = sqrt(c^2)
101 = c
Answer: Mass of Lamina is (K/3)
Centre of mass is (3/8, 3pi/16)
Find explanation in the attachments
Answer: B
c/ perpendicular ...
0.012
1.2*1/10*10
=0.012