Cube: Area cubed
Rectangular Prism: A=(wl+hl+hw)
4(2x-5)+15=11
8x-20+15=11
8x-5=11
8x=11+5
8x=16
x=16/8
x=2
Hope it helps
Answer:
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Step-by-step explanation:
- When two straight lines intersect each other, then the pairs of angles so formed without any common arm are called vertically opposite angles.
- Vertically opposite angles are equal to each other.
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So,

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Removing the brackets,



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Therefore,