brandonm39
19.09.2019 •
Mathematics
Me on my geometry question
the figure below shows a triangle with vertices a and b on a circle and vertex c outside it. side ac is tangent to the circle. side bc is a secant intersecting the circle at point x:
what is the measure of angle acb?
a. 32 degrees
b. 6 degrees
c. 24 degrees
d. 12
Solved
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Ответ:
The measure of an inscribed angle is half the measure of the intercepted arc ⇒
arc AX = 2*∠ABX = 2 * 64 = 128°
The angle formed by the intersection of tangent and secant outside the circle equals half the difference of the intercepted arcs ⇒
∠ACB = (arc AB - arc AX)/2 = (152 - 128)/2 = 24/2 = 12°
Ответ:
Ответ:
Then using the slope plot another point, so up 4, to the right 7 and the point should be (2,7) and if you needed another point (6,14)
Then draw a line through it
I hope this helps