They will ring again together at 10:15am. Because the common factor for 40, 48 and 60 is 240, which means 240 minutes, that equals to 4 hours. Hence 4 hours after 6.15am is 10.15am.
Hope this helps.
When they talk about congruent polygons, they meant geometric figures that are all equal in shape and size.
It's angled, and the side length is equal too.
When you piled equal polygons, you'll end up with what we call prisms. It's the 3D form of a polygon.
If you stack squares, you'll have a cube.
If you stack octagons, you'll have an octagon prism.
Answer:
Step-by-step explanation:
22 + 1 = -x + 4
23 = -x + 4
- 4 - 4
________
19 = −x
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Answer:
each pair of distinct vertices we connect them up with
a line segment. There are (8 2 )=28 such line segments.
Step-by-step explanation:
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