Apizza measures 10 inches across. what is the area of the pizza? a) 62.8 b) 78.5 c) 15.7 d) 314 aya 13) a shirt is on sale for 20 1 if

b) 78.5

Step-by-step explanation:

The radius of the pizza is

10/2 = 5 inches

The area of a cirlcle is

A = πr^2

A = π(5)^2

A = 78.5

< 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)