ghostvp14 ghostvp14

07-02-2021
Mathematics

contestada

the total surface area of this cuboid is 76cm^2 find the value of x (5cm = width, 4cm= length and x = height)

Respuesta :

thebecks thebecks

07-02-2021

Answer:

Height x=2

Step-by-step explanation:

area of top & bottom:

(5)(4)(2)=40

area of 2 sides:

(x)(5)(2)=?

area of the other two sides:

(x)(4)(2)=?

total area=76

76=40+10x+8x

simplify:

36=18x

x=2

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