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otez555 [7]
3 years ago
12

What is the name for a statement that shows two expressions are equal?

Mathematics
2 answers:
Serggg [28]3 years ago
4 0

A mathematical equation

Semmy [17]3 years ago
3 0
An equation is a statement that shows that 2 expressions are equal.
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Answer:

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(a) To get the length of AD, we can use pythagoras on the triangle part. Let's say the dotted line intersects DC at E. Then since AB and DC are parallel, AD is equal to BE. EC = 8 cm simply by subtracting AB from DC (15-7=8).

Then pythagoras says that 8²+BC²=10². So BC = √(100-64) = 6. And since BC=AD, AD is also 6.

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