Answer: 21
Step-by-step explanation:
since 19 is the breadth and the perimeter is 80m, so 19*2=38 and 80-38= 42 so 42/2=21. The answer is 21
5√7 + 12√6 - 10√7 - 5√6
Write it like this:
(12√6 - 5√6) + (5√7 - 10√7),
as the 12 and 5 are both being multiplied by √6, they can be added or subtracted and its the same with 5 and 10, so it becomes:
7√6 - 5√7
You should leave it like this.
Answer:
x=54
Step-by-step explanation:
since the line opposite of x is tangent to the circle, the angle made but the point is 90 degrees, so then you add 90 and 36 and subtract that by 180 to get the other angle.
Answer:
30
Step-by-step explanation:
The measure of an arc is the size of the corresponding central angle, so angle 1 for AB,
