Question

A rhombus shaped sheet with perimeter 40 cm and one diagonal 12 cm is painted on both sides. Find the total
money paid if the rate of painting is Rs 6 per cm2
.

Answer 1

Answer:

Step-by-step explanation:

LET THE SIDE OF THE RHOMBUS BE 'a'

LET THE' p' REPRESENTS ONE OF THE DIAGONALS AND' P' REPRESENTS THE PERIMETER OF THE RHOMBUS

GIVEN :

P = 40 CM

p = 12 CM

AREA OF THE RHOMBUS , A = 1/4*p√(P²- 4 p²)

A = 1/4*12√(1600-4*144)

A = 3*√(1600-576)

A = 3*√1024

A = 3*32

A = 96 CM²

THEREFORE TOTAL AREA OF THE RHOMBUS = 96 CM²

COST FOR PAINTING 1 CM²= RS.6

THEREFORE THE TOTAL COST  = 96*6

                                                      = RS . 576.

TOTAL COST =RS. 576.

HOPE THIS HELPS.