Answer:
4:10, 2:5 16:40
Step-by-step explanation:
just multiply or divide
We know that
A quadrilateral is inscribed in a circle if and only if the opposite angles are supplementary. ( Inscribed Quadrilateral Theorem)
so
m∠B+m∠D=180°
2x+(3x-5)=180
5x=180+5
5x=185
x=185/5
x=37°
m∠A=x+5-----> 37+5------> 42°
the answer is
m∠A is 42°
Answer:
33
Step-by-step explanation:
20) Answer is: x=76
21) Answer is x=15