Answer:
a = 3
Step-by-step explanation:
2a + 6 = 12
-6 -6
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2a = 6
take six and divide by 2
a = 3
Answer:
Step-by-step explanation:
You add up all the sides of the shape to find the perimeter
Answer:
i will answer this question hold on ill be back
Step-by-step explanation:
Answer:

Step-by-step explanation:
When a quadrilateral is inscribed in a circle, the opposite angles of it add up to 180 degrees.
Here,
∠DCB + ∠DAB = 180 (Opposite angles of a quad inscribed in a circle.)
<u>Given that:</u> ∠DCB = 135° and ∠DAB = x
135 + x = 180
Subtract 135 to both sides
x = 180 - 135
x = 55°
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
Answer:
sorry i dont quite understand, were you given more information
Step-by-step explanation: