the area of trapezium is 475 CM square and the height is that 19 cm find the length of its two parallel sides in one side is 4 cm greater than the other
Answers
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STEP 1: Define x:
Let one of the parallel line be x
The other parallel line = x + 4
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STEP 2: Form the equation:
Area of Trapezium = 1/2 (a + b) h
1/2 (x + (x + 4) ) (19) = 475
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STEP 2: Find x:
1/2 (x + (x + 4) ) (19) = 475
1/2 (2x + 4)(19) = 475
19x + 38 = 475
19x = 437
x = 23
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STEP 3: Find the length:
one parallel line = x = 23 cm
The other parallel line = x + 4 = 23 + 4 = 27 cm
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Answer: The other parallel side is 23 cm and 27 cm
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