PQ = 4/8 × 168 cm2
=672/8
=84cm2
PQ = 4x, RS = 3x
L = (PQ+RS)/2 . t
168 = (4x+3x)/2 . 8
168 = 7x . 4
7x = 42
x = 6
PQ = 4x
PQ = 4.6
PQ = 24 cm
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PQ = 4/8 × 168 cm2
=672/8
=84cm2
PQ = 4x, RS = 3x
L = (PQ+RS)/2 . t
168 = (4x+3x)/2 . 8
168 = 7x . 4
7x = 42
x = 6
PQ = 4x
PQ = 4.6
PQ = 24 cm