Answer:
ABC is an isosceles triangle.
Because it consists of two congruent triangles created by CD, side AC = CB, making it an isosceles triangle.
Step-by-step explanation:
I can conclude that triangle ABC is an isosceles triangle.
Perpendicular means intersecting at 90°. Bisector means intersecting at the midpoint, halfway between the two ends.
Since CD is dropped from vertex C and is a perpendicular bisector of AB, angle C is also bisected.
Therefore angle C for both triangles CDA and CDB is of equal measure.
We know angle D for both triangle CDA and CDB is of equal measure, 90°, because CD is a <em>perpendicular </em>bisector of AB.
The two triangles also share the same side CD.
Triangles CDA and CDB are congruent for having 2 equal angles and 1 equal side (ASA property).
Since they are congruent, AD = AB and AC = CB. Therefore triangle ABC is an isosceles triangle.
Answer:
There will be 2 distinct angles.
Step-by-step explanation:
When three lines intersect each other, the point of intersection is divided into three pairs of vertically opposite angles. Vertically opposite angles are opposite to each other and are equal in measure.
So, if one of the 6 angles is 90°, then the angle opposite to it will also be 90°. Now, there are 2 pair of angles left. So, there will be 4 angles out of which 2 angles will be equal to its pair angles. So, only 2 distinct angles will be left.
Therefore, there will be 2 distinct angles other than the 90 degree pair.
Answer:
1.668 S
Step-by-step explanation:
We are given that
Product
For first order reaction,
Rate constant=k=
Temperature=
We have to find the time taken by the reaction when concentration of A to decrease from 0.790 M to 0.230 M.
Substitute the values then we get
Hence, it would take 1.668 s for the concentration of A to decrease from 0.790 M to 0.230 M.
multiply 5 and 2 then that with 23.
5x2=10 23x10=230
Answer:
its just 3 times 7 i think
Step-by-step explanation:
