A floral design on a floor is made up of 16 tiles which are triangular,
the sides of the triangle being 9cm, 28cm and 35cm. Find the cost of
polishing the tiles at the rate of 50p per m^2?

Question

angelinajolly angelinajolly

02-02-2021
Mathematics

contestada

A floral design on a floor is made up of 16 tiles which are triangular,
the sides of the triangle being 9cm, 28cm and 35cm. Find the cost of
polishing the tiles at the rate of 50p per m^2?

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stop000juyles stop000juyles · Answer 1 · 2021-02-02T06:01:46+01:00

stop000juyles stop000juyles

02-02-2021

Answer:

Answer

Area of tiles = 16 x area of 1 Δ

S=

2

a+b+c

=

2

9+28+35

=

2

72

=36

Area=

36(36−9)(36−28)(36−35)

36×27×8×1

36

6

cm

2

Area of tiles = 16 ×36

6

=1410.20.

Cost of polishing per cm

2

= 50.

Cost of polishing = 1410.90 cm

2

1410.90 x

2

1

705.45

Step-by-step explanation:

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A floral design on a floor is made up of 16 tiles which are triangular, the sides of the triangle being 9cm, 28cm and 35cm. Find the cost of polishing the tiles at the rate of 50p per m^2?

Respuesta :

Otras preguntas

A floral design on a floor is made up of 16 tiles which are triangular,
the sides of the triangle being 9cm, 28cm and 35cm. Find the cost of
polishing the tiles at the rate of 50p per m^2?