Find the distance round the semi circle with a diameter of
35 cm

a semi circle is half a circle so 35 divided by 2 is 17.5

Step-by-step explanation:

54.91 cm ² is the perimeter

formula =2 × 3.14× r (half the diameter)× 0.5

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3

1/3 + 1/3 ≠ 2/6 because 1/3 alone = 2/6  

step by step explanation:

1/3 + 1/3 = 2/3       2/3=4/6