Answer:
Step-by-step explanation:

Hint:

Answer:
32cm and 28cm
Step-by-step explanation:
Area of a trapezium=0.5 ( sum of parallel sides ) × height
600=0.5( 4+a+a)×20
where a is the length of the shorter side
600÷0.5=(4+2a)×20
1200=(4+2a)×20
1200÷20=4+2a
60=4+2a
60-4=2a
56=2a
56÷2=a
28=a.
since the longer side is 4 cm more than th shorter side , 28 +4=32
Answer:
answer that do not poru branly
Step-by-step explanation:
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Answer:
630m³
Step-by-step explanation:
volume= 7m×9m×10m=630m³
Answer:
%70
Step-by-step explanation:
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