1.When all the three cut outs of the angles A, B, C placed adjacent to each other at a point, then it forms a line forming a straight angle, i.e. 180°.
Flence, it is proved that the sum of the three angles of a triangle is 180°.
Therefore, ∠A + ∠B + ∠C =180
Answer:
What figure
Step-by-step explanation:
Answer:
42%
Step-by-step explanation:
If the probability of the first machine breaking down is 30%, the probability of it operating normally is 100% - 30% = 70%
The probability of the second machine operating normally is 100% - 40% = 60%
So, the probability of both machines operating normally in one day is:
P = 70% * 60% = 0.7 * 0.6 = 0.42 = 42%
Answer:
Hey there!
Triangle PQT and RQT are congruent by AAS. AAS means that one side is congruent, and two angles are congruent.
Since these triangles share one side, then the side is congruent.
PR is a straight line, so if angle Q is 90 degrees, then the supplementary angle is also 90 degrees.
Finally, the diagram shows that angles R and P are congruent to each other.
Hope this helps :)