How much ribbon is required to wrap once around a basketball present? Basketballs are 78 cm in diameter.

C = 78 pi cm

Letting pi = 3.14

C = 244.92 cm

Letting pi =  pi button

C = 245.044227 cm

Step-by-step explanation:

We want to find the circumference

C = pi *d

C = pi *78

C = 78 pi cm

Letting pi = 3.14

C = 244.92 cm

Letting pi =  pi button

C = 245.044227 cm

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)