Question

solve the following

the area of a trapezium is 34 cm sq and it's height is 4 cm. one of the parallel sides of the trapezium is 10 cm, find the other parallel side. ​

Answer 1

Answer:

Let the length of the other parallel side be b.

Length of one parallel side (a) = 10 am and height (h) = 4 cm

Area of trapezium = 1/2 (a+b)xh

⇒ 34=1/2(10+b)x4 ⇒ 34 = (10+b)x2

⇒ 34=20+2b ⇒ 34-20=2b

⇒ 14=2b ⇒ 7=b ⇒ b=7

Hence, the another required parallel side is 7 cm

Step-by-step explanation:

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Answer 2

7 is the answer...

as, let area= a

so a= 1/2 (a+b)h

where, a and b are parallel sides...

h is height...so

34= 1/2(10+b)4

so, 34 = 20 + 2b

34-20=2b

14= 2b

b =7