I think it's c but then again I can't be sure
Answer:
C) 1/2(y-127) = 53
Step-by-step explanation:
When an angle is formed by two secants, a secant and a tangent, or two tangents, the measure of the angle is equal to one-half of the difference between the intercepted arcs.
In this circle, our intercepted arcs are y° and 127°. Their difference would be (y-127). One-half of this would be 1/2(y-127). The angle measure is 53; this gives us
1/2(y-127) = 53
hope this helps c:
Volume = Cross-sectional area * length
C-S area = 1/2 * b * h
1/2(4)(15) = 30
length = 18
Volume = 30 * 18
= 540 mm^3
S' area = 2(C-S area) + 8(18) + 15(18) + 17 (18)
= 2(30) + 8(18) + 15(18) + 17(18)
= 60 + 144 + 270 + 306
= 780 mm^2
A and E I think because isosceles is two equal and one different and Right because it has a right/90° angle