To find: the length of each diagonal of a cube.
Answer to Problem 7P
Explanation of Solution
Given:
Sides of the cube is 45 cm.
Calculation:
According to the question, all the sides of the
As it is known that the area of the equilateral triangle is
Here, from right triangle ABC, AC is the hypotenuse. Therefore,
By using Pythagoras theorem,
Thus,
Hence, the area of the triangle is
Chapter 11 Solutions
Algebra: Structure And Method, Book 1
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