Answer:
<em>m∠C = 30° </em>
Step-by-step explanation:
If ΔADB is an equilateral, then m∠A = m∠ADB = m∠DBA = 60°
If ΔDBC isosceles with DB ≅ BC, then m∠C = m∠BDC ;
m∠C + m∠BDC = m∠DBA = 60° ⇒ <em>m∠C = 30°</em>
The answer is 0.01. Plug this into a calculator or your phone to find the answer easily.
There are 4 quarterly inches in 1 inch so 4 x7=28 + 3 quarter in 3/4 so 31 quarter inches in all.