Question

plz answer this question correctly in step wise manner!​

Answer 1

Answer:

(in triangleADE)all sides of triangle is 180degree

Step-by-step explanation:

then AD+DE+EA=180degree

hence it us given in question AD=1cm

BD=2cm and simlirly by AD and BD

then EA=1cm and EC=2 cm

by question DE//BC

in triangle

ADE,

AD+DE+EA=180

1+DE+1=180

2+DE=180

DE=180-2

DE=178

BY QUESTION DE//BC

IN TRIANGLE ABC,

AD+DB=AB=1+2 CM=3CM

AE+EC=AC=1+2cm=3cm

AB+BC+AC=180

3+BC+3=180

6+BC=180

BC=180-6

BC=174

and the ratio of triangleAbc:triangleAde

174:178=87:89