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3 years ago

How to find the length when the perimeter and width is given

Mathematics

2 answers:

soldi70 [24.7K]3 years ago

7 0

Answer:

You divide the perimeter by the width to get the length

Step-by-step explanation:

Nitella [24]3 years ago

6 0

You have to divid the perimeter , etc.

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Las bases de un prisma recto son dos triangulos rectangulos cuyos catetos miden 1.5 cm y 1.8 cm, respectivamente, el prisma tien

nydimaria [60]

Answer:

Part 1) The surface area is $SA=35.1\ cm^{2}$

Part 2) The volume is equal to $V=12.15\ cm^{3}$

Step-by-step explanation:

The question in English is

The bases of a right prism are two rectangle triangles whose legs measure 1.5 cm and 1.8 cm, respectively, the prism has a height of 4.5 cm. calculates its total surface area and volume

Part 1) Find the surface area

The surface area is equal to

$SA=2B+Ph$

where

B is the area of the base

P is the perimeter of the base

h is the height of the prism

$B=(1.5)(1.8)=2.7\ cm^{2}$

<em>Find the perimeter of the base P</em>

$P=2*(1.5+1.8)=6.6\ cm$

we have

$h=4.5\ cm$

substitute the values

$SA=2(2.7)+(6.6)(4.5)=35.1\ cm^{2}$

Part 2) Find the volume

The volume is equal to

$V=Bh$

where

B is the area of the base

h is the height of the prism

we have

$B=2.7\ cm^{2}$

$h=4.5\ cm$

substitute

$V=(2.7)(4.5)=12.15\ cm^{3}$

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