2. Find mzR and mzS.
89°
R
157 T
Р

m∠R = 123°

m∠S = 91°

Step-by-step explanation:

The measure of an inscribed angle is 1/2 the measure of the intercepted arc

m of arc QRS = 2 m∠P = 2(57) = 114

Now m of arc SPQ = 360 - 114 = 246

So, m∠R = 1/2(246) = 123

m of arc RSP = 2 m∠Q = 2(89) = 178

m of arc PQR = 360 - 178 = 182

m∠S = 1/2(182) = 91

16m

Step-by-step explanation:

The scale is 3cm:4m

The model house is 12cm wide

We will think of the ratio as a fraction

3/4

If we divide 12/3 and multiply that answer by 4, we will get the answer.

12/3=4, then 4×4=16

The house is 16m wide