area of a trapezium is 28 cm" and one of its parallel sides is 6 cm, find the
parallel side if its altitude is 4 cm?
Answers
Answered by
14
Answer:
8 cm
Step-by-step explanation:
(sum of parallel side )×1/2 × height
(x+6)×1/2×4=28
x+6=28/2
x=14-6
x=8
Answered by
6
Step-by-step explanation:
area of trapezium= 1/2(b1+b2)xh
28 cm^2= 1/2(6+b2)x4
28x2/4= 6+b2
14 = 6+ b2
b2 =14-6
b2 = 8cm
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