2 years ago

A cube has a length of 9.3 cm. what is the surface area of the cube?

1 answer:

6 0

Answer: 518.94 square centimeters

Explanation:

The surface area of the cube is given by

Surface Area = 6*(edge)²

Since the edge of the cube in this problem is its length, the egde is 9.3 cm. Hence, the surface area of the cube is calculated as

Surface Area = 6*(edge)²
= 6*(9.3 cm)²
Surface Area = 518.94 square centimeters

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Points A B C D and E are collinear and in that order. Find AC if AE=x+50 and CE=x+32

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Answer:

Step-by-step explanation:

Points A B C D and E are collinear.

$\therefore AE = AC + CE\\\therefore AC = AE - CE\\\therefore AC = x + 50 - (x + 32) \\\therefore AC = x + 50 - x - 32 \\\therefore AC = 50 - 32 \\ \huge \red{ \boxed{\therefore AC = 18}}$