Answer:
see the attachment photo!
If the legs of a triangle are 6cm and 5cm, find the area of the triangle
2 answers:
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Answer:
F: 48
Step-by-step explanation:
Let x be the length of the side of the cube. RQ can be expressed as a triangle consisting of a diagonal of a face of the cube and the side length x. By the pythagorean theorem, we know that a^2+b^2=c^2. So, we can express the diagonal as x^2+x^2=c^2, giving us the value of c to be . Now, we can once again use the pythagorean theorem to find RQ^2=2x^2+x^2=3x^2, so RQ=
=12, so x=
. To find the area of the shaded part, we multiply the length times width which gives us
. So, the area of the shaded face of the cube is F: 48.