Question

the area of a trapezoidal field is 480cm² and the length of one of it's parallel side is 20m and it's height is 15m find the length of other parallel side​

Answer 1

Answer:

44cm

Step-by-step explanation:

answer is 44cm

formula

$area \: of \: trapezium = h(a + b) \div 2 \\ 480 = 15(20 + x) \\960 = 15 \times20 + x \\ 44cms$

Answer 2

Question :

• the area of a trapezoidal field is 480cm² and the length of one of it's parallel side is 20m and it's height is 15m find the length of other parallel side

Given:

• Area of field is 480²
• Length of Parallel sides is 20m
• Height is 15m

To find:-

• Length of other parallel side

Solution:-

→Area of trapezium = ½×(a+b)×h

→480 =½×(20+b)×15

→480×2= (20+b)×15

→960=(20+b)×15

→960=300+1

→15b=960-300

→15b =660

→$b=\frac{660}{15}$

→44

• Therefore the measure if other parallel side is 44m

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Step-by-step explanation: