Question

WOULD LOVE IT IF U SOLVE IT ALONG WITH REASONING CAUSE ITS GEOMETRY...!!

Answer 1

i) Area of triangle = 1/2bh

area of DEF = 150

so, 150 = 1/2*b*6

= 150 = 3b

= b = 150/3 = 50cm

EF = 50cm

ii) Area of GEF = 1/2*50*10

= 25*10 = 250cm²

iii) A of GEF+ A of DEF

= 150+250

=400cm²