The triple card can be any one of 13 values (ace through king). For each of those, the double card can be any one of the remaining 12 values. So concerning only the face values of the cards, there are (13 x 12) = 156 different full hice. If you include attention to the suits, then there a lot more.
Is the surface a rectangle?? If so, then the surface area would be 35
Answer:
x=120°
Step-by-step explanation:
First, let's look at ΔBAC. We can see that all three sides, AB, BC, and CA, are congruent. This means that the triangle is an equilateral triangle, meaning that all angles of the triangle are congruent.
A property of all equilateral triangles is that the interior angles are all 60°. We can prove this by dividing 180, the sum of the interior angles of a triangle, by 3, because there are three equal angles in an equilateral triangle. 180/3=60.
This means that we now know ∠BAC is 60°.
Now let's look at GC. It is a straight line, meaning the angle GAC is 180°.
If ∠BAC is 60°, and ∠GAC is 180°, then x must be 180-60=120°.
x=120°
In order to solve this we need to get x by itself on one side.
We need o start by adding across the 4 so that we get:
x/3 = -7 + 4 = -3
We then need to multiply both sides by 3 to get a singular x:
x = -3 * 3 = -9
