Answer:
2π m.
Step-by-step explanation:
Arc XY is 1/4 of the circumference of the circle
= 1/4 * 2π * r
= 1/2 π * 4
= 2π m.
45°
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Refer to the attachment. Hope it helps you. Please mark as the brainliest. Thanks
Answer:W=5x15
HTH