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Mathematics 12 Online
OpenStudy (jameshorton):

@itbribro

OpenStudy (jameshorton):

OpenStudy (jameshorton):

@welshfella

OpenStudy (samanthagreer):

what do you think

OpenStudy (welshfella):

Hint: it has 6 faces

OpenStudy (samanthagreer):

no i will not give you the anwsers but i will help you

OpenStudy (jameshorton):

i need to get this done in 5 min

OpenStudy (samanthagreer):

what can you atomaicaly take out

OpenStudy (welshfella):

its not the sites policy to just give answers

OpenStudy (jameshorton):

oh

OpenStudy (samanthagreer):

you can x out b and d what do you think it is

OpenStudy (jameshorton):

but i have 5 min and i need to get dress and do my homework before i leave

OpenStudy (jameshorton):

A

OpenStudy (samanthagreer):

no its c

OpenStudy (jameshorton):

OpenStudy (samanthagreer):

ok what 2 can you x out

OpenStudy (samanthagreer):

can you x out a and d

OpenStudy (jameshorton):

d

OpenStudy (jameshorton):

B

OpenStudy (samanthagreer):

yes

OpenStudy (jameshorton):

What is the surface area of a cube with faces that each have an area of 14 cm2? A. 56 cm2 B. 84 cm2 C. 112 cm2 D. 196 cm2

OpenStudy (samanthagreer):

what do you thinl

OpenStudy (jameshorton):

i think i D

OpenStudy (samanthagreer):

nowhat is 6 X14

OpenStudy (jameshorton):

84

OpenStudy (samanthagreer):

there you go

OpenStudy (jameshorton):

A square pyramid has a base area of 25 ft2. The pyramid’s total surface area is 105 ft2. What is the area of each triangular face? A. 20 ft2 B. 26 ft2 C. 40 ft2 D. 80 ft2

OpenStudy (samanthagreer):

what do you think

OpenStudy (jameshorton):

d

OpenStudy (samanthagreer):

no its a

OpenStudy (jameshorton):

OpenStudy (samanthagreer):

b

OpenStudy (welshfella):

(105 - 25) / 4

OpenStudy (welshfella):

there are 4 triangular faces and their total area = 105 - 25 = 80

OpenStudy (welshfella):

so that means each face as area 80/4 = 20

OpenStudy (welshfella):

@samanthagreer pleas just dont give the answer. Explain how you got it. The questioner will learn much more that way

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