Question

A trapezium is made up of triangles.

Triangles ABE and BCE are right-angled triangles.
Triangles CDE and BCE are isosceles triangles (CE = DE and BC = BE).
AE = 3 cm and EB = 4 cm.
Work out the length of AD.​

Answer 1

Step-by-step explanation:

let ad=L

then use area of trapezium =1/2×h(b1+b2)

& find L

Answer 2

Answer:

EB=BC. (isoceles triangle)

also ∆BCE is a right triangle in which EC. is hypo.

by pythagoras theorm you can find length of EC .

now EC is equal to ED

put the value of ED and AE is given 3 cm. join both ...which will be equal toAD