Answer:
Step-by-step explanation:
Given
-- center
--- pass through
Required
The radius (r)
The equation of circle is:
So, we have:
Take square roots of both sides
Answer:
1) 98°
2) 65°
Step-by-step explanation:
Sum of the angles in any triangle = 180°
in first triangle the third inner angle = 180 - (18 + 80) = 82 then measure of (1) = 180 - 82 = 98°
The missing interior angle of the second triangle = 180 - 124 = 56° then measure of (2) = 180 - (59+56) = 65°
Answer:
Step-by-step explanation:
x and y = 27° : they are alternate angle to angle FDE = 27°