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It is stated that,
SOUR is a ||gm
SM= 5 cm
UO = 6.5 cm
SO = 9 cm
∠UOS' = 55°
RM = OM
Construction: Join MU
Solution:
∠SOU' + ∠SOU = 180° (Linear pair)
⇒ 55° + ∠SOU = 180°
⇒ ∠SOU = 180°-55°
⇒ ∠SOU = 125°
∠SOU = ∠SRU = 125° (Corresponding ∠s of a ||gm.)
∴ ∠R = 125°
∠R + ∠U = 180° (Co- interior ∠s)
⇒ 125° + ∠U = 180°
⇒ ∠U = 180° -125°
⇒ ∠U = 55°
∴ ∠U = 55°
∵ Diagonals of a quadrilateral always bisect each other in right angles.
∴ SM = MU = 5 cm
∴ SU = (SM+MU)
= (5+5)
= 10 cm
∴ The length of diagonal SU is 10 cm.
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