Quadrilateral abcd is inscribed in this circle.

what is the measure of ∠a ?

enter your answer in the box.

°

The measure of the ∠A is 59°.  

Step-by-step explanation:

It is given that a quadrilateral ABCD is inscribed in a circle, and from the properties of circle, we know that the sum of the opposite angles of the quadrilateral inscribed in the circle is equal to 180°.

Therefore, ∠A+∠C=180°

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Therefore, the measure of the ∠A is 59°.

this is answer of 144 cubic meters