Which questions can you please send a link? :)
Answer:
commutative
Step-by-step explanation:
you are typing the same numbers but in different order
Answer:
Step-by-step explanation:
the lines weren't really clear so sorry if its a bit messy
The conversion is 9*9=81
The conversion is true
<h3>
Step-by-step explanation:</h3>
The point of intersection of the perpendicular bisectors of a triangle is the circumcenter, the center of the circle that contains the three triangle vertices.
If that center is on one side, that side must be a diameter of the circle. The diameter cuts the circle into two arcs, each of which measures 180°.
The third vertex of the triangle and its two legs form an inscribed angle that subtends an arc of 180°. The measure of that angle is half the measure of the arc, so the angle measures 90° and is a <em>right angle</em>.
A triangle with a right angle is a right triangle. QED
