Question

find the area of trapezium whose parallel sides are 20cm and 18cm long, and the distance between them is 15cm.​

Answer 1

Answer:

given ,

length of two parallel sides of trapezium a and b

a=20cm

b=18cm

height =15cm

area = h(a+b)/2

= 15(20+18)/2

15(38)/2

15×19 = 285cm ^2

therefore area of the trapezium = 285 cm^2

Answer 2

Step-by-step explanation:

a=20cm

b=18cm

h=15cm

Area of trapezium=

1/2×(a+b)×h

1/2×(20+18)×15

1/2×38×15

1/2×570

285 cm