Question

Diagram of the adjacent frame has outer dimensions 28×24cm and inner dimensions 20××16cm .Find the area of shaded part of frame ,if width of each section is the same​

Answer 1

Answer:

Given:

outer dimensions 28 cm×24 cm and inner dimensions 20 cm×16 cm

Area of shaded region =(areaEFJI−areaEFGH)+ 2 × area △AIH

= (20×20−16×20)+2×

2

1

×4×4

= (400−320)+16=80+16=96cm

2