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3 years ago

Please help me!!!!!!!

Mathematics

1 answer:

dusya [7]3 years ago

5 0

Answer:

544 units²

Step-by-step explanation:

The surface area is the sum of the areas of the three rectangular faces and the two triangular bases.

SA = 10×14 +10×14 +12×14 + 2(1/2)(12)(8)

= 14×(10+10+12) +12×8

= 448 +96

= 544 . . . . square units

_____

The area of a rectangle is the product of its dimensions:

A = LW

The area of a triangle is half the product of its base and height:

A = (1/2)bh

Here, both triangles have the same area, so we multiplied the area of one of them by 2 to get the area of both of them.

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DanielleElmas [232]

Answer:

Step-by-step explanation:

Given expression is,

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To prove this identity we will take the right side of the identity,

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3 years ago

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Answer:

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