C) 12 degrees
Angle N corresponds to R, and 180-90-78=12, which is the measure of the missing angle.
Answer:
13, 15, 17
Step-by-step explanation:
Gọi 3 STN lẻ cần tìm là a, a+2, a+4 (a thuộc N*)
Theo đề bài ta có:
(a + 2)(a + 4) - 177 = 6a
=> a^2 + 4a + 2a + 8 = 6a + 177
=> a^2 + 6a + 8 = 6a + 177
=> a^2 + 6a - 6a = 177 - 8 (chuyển vế)
=> a^2 = 169 = 13^2
=> a = 13
=> a+2 = 15, a+4 = 17
Vậy 3 STN lẻ cần tìm là 13, 15, 17
Answer:
Approximately, 0.05
Step-by-step explanation:
In case you meant 38 divided by 2 = 19
Answer:
x = 0.5
Step-by-step explanation:
hope this helps!
1. Angle DEF
2. Definition of congruent angles
3. The measure of angle GHI
