Question

. A circle with centre O, measure of the central  XOY = 78°, find the measure of the chord

XY and state the reason.​

Answer 1

Answer:

here you go

Step-by-step explanation:

Area of a Sector of a Circle:

The sector of a circle is a region bounded  by a central angle and  

its intercepted arc.

Formula: A = ½r2θ A = Area (units squared!!)

r = radius

θ = central angle in RADIANS!!!

Ex. 1) Find the area of the sector of a circle whose central

angle is 7π/8 and the radius is 3 cm.

Ex. 2) Find the area of the sector of a circle with central

angle of 50o

and radius 6m.

Ex. 3) Find the area of the sector of a circle with central

angle 48o

and diameter 44in.

Ex. 4) What's the diameter of a circle with a central angle

of π/3 and with a sector area of 503.468ft2