Lucid7930
20.08.2020 •
Mathematics
Find the angle measure x in the figure
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Ответ:
x = 25
Step-by-step explanation:
Make use of the fact that the sum of angle measures in a triangle is 180°.
(2x+15)° +(3x+5)° +(x+10)° = 180°
6x +30 = 180 . . . collect terms, divide by °
x +5 = 30 . . . . . . divide by 6
x = 25 . . . . . . . . . subtract 5
Check
This value of x makes the angle measures be ...
A = (x+10)° = 35°
B = (3x+5)° = 80°
C = (2x+15)° = 65°
These angles total 180°.
Ответ:
Twice larger QPRS
Step-by-step explanation:
Despite the absence of the coordinates of QPRS, for an objective answer When we dilate centered at its origin all we need to do is to multiply by its scale factor the coordinates of QPRS to obtain the Q'P'R'S'.
Since the Scale Factor is 2, then Q'P'R'S' has doubled the size of QPRS. By doing that you can see that the new transformed figure is twice larger than its original one.