Question

u 75 cm
& the
The area of a trapezuim is
height is 19 cm. Find
the lengths of its two parallel
sides. If one side is 4 cm greater​

Answer 1

Step-by-step explanation:

thofoneparallelsideoftrapeziumisa.

Solengthofotherparallelside=a+4

Giventheareaoftrapezium=475&theheight=19

Nowareaofatrapezium=

2

1

×height×(sumoftheparallelsides)

⇒

2

1

×19×[a+(a+4)]=475

⇒2a+4=

19

475×2

⇒2a+4=25×2

⇒2a+4=50

⇒2a=50−4

⇒2a=46

⇒a=

2

46

=23

∴Lengthofsmallerparallelsideoftrapezium=23