JAMB - Mathematics (2010 - No. 11)
From the cyclic quadrilateral TUVW above, find the value of x
26o
24o
20o
23o
คำอธิบาย
TUVW is a cyclic quad
3χ + 20 + 88 = 180 (opp ∠ s of a cyclic quad are supplementary)
3χ + 108 = 180
3χ = 180 - 108
3χ = 72
χ = 72/3
χ = 24o
3χ + 20 + 88 = 180 (opp ∠ s of a cyclic quad are supplementary)
3χ + 108 = 180
3χ = 180 - 108
3χ = 72
χ = 72/3
χ = 24o