a. 4
b.-1
c. 3
Answer:
Step-by-step explanation:
"Congruent" here means that if you place a drawing of one angle on top of another and the two drawings match perfectly, you've got congruence.
A- 26
B- 46
C-15
D-80
Answer:
C. 15
Step-by-step explanation:
A straight line equals 180°.
The angles are:
(6x + 10) +
(6x - 10)
+10 and -10, cancel each other out.
Now we are left with:
(6x) +
(6x)
6 + 6 = 12, so we have 12x
180° ÷ 12 = 15°
Answer: 15
Step-by-step explanation:
90 • 4 – 14 ÷ 2 + 10² ÷ 5 • 2