the parallel sides of a trapezium are of measures 20 m and 16 m and the distance between them is 12 m , find its area
Answers
Answered by
1
Answer:
Draw BE∥AD, then AB∥DE
Hence ABED is a parallelogram
∴AB=DE=20m
AD=BE=8m
EC=DC−DE=30−20=10m
Now, ar△BCE=
s(s−a)(s−b)(s−c)
,s=
2
8+6+10
=12m
∴ar△BCE=
12(12−8)(12−6)(12−10)
=
12×4×6×2
=2×12=24㎡
2
1
×EC×BF=24㎡⇒BF=
10
24×2
=4.8m
∴arABCD=
2
1
×(AB+CD)×BF=
2
1
×(20+30)×4.8
=50×2.4
=120m
2
Answered by
3
Answer:
idk the answer but the explanation will help u.
Step-by-step explanation:
Area:In geometry the area can be defined as the spare occupied by a flat shape or the surface of an object.
FORMULA
AREA OF A SQUARE: side x side
AREA OF A RECTANGLE: length x length
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