Landon painted a shape that had 4 sides. The shape has 4 angles. What kind of shape did he paint?

A quadrilateral.

Step-by-step explanation:

A quadrilateral has four sides and four angles. For example, a square is a quadrilateral because it has four sides and angles.

answer: r there any options?

step-by-step explanation:

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116