passpadi

2006

Mathematics

JAMB

In the diagram above, find the value of x

A.

55°

B.

50°

C.

45°

D.

40°

Correct Answer: 45°

Explanation

y = 55 (alternate angles) x = x (same reason) 260 + y + x = 360 (∠s at a point) 260 + 55 + x = 360 315 + x = 360 x = 360 - 315 x = 45°

y = 55 (alternate angles) x = x (same reason) 260 + y + x = 360 (∠s at a point) 260 + 55 + x = 360 315 + x = 360 x = 360 - 315 x = 45°
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