What is the exact value of the sin r?

45/53

Step-by-step explanation:

tan(U) = WV/UV = 28/45

We can consider WV = 28 and UV = 45 and compute UW using the Pythagorean theorem:

UW = √(UV² +WV²) = √(45² +28²) = 53

From the definition of the sine of an angle, we know ...

sin(W) = UV/UW = 45/53

Because the triangles are similar, ...

... sin(R) = sin(W) = 45/53

4.6875 pounds

step-by-step explanation:

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐