3 years ago

Will they be positive or negative?

Mathematics

2 answers:

Vesnalui [34]3 years ago

5 0

I. Positive (10+{-5}=10-5=5)

II. Negative (-2+{-6}=-2-6=-8)

III. Positive (-10-{-20}=-10+20=10)

Hope this helps :)

Rudiy273 years ago

3 0

Negative , negative , positive

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Length of side of rhombus is $x=\frac{ab}{a+b}$

Step-by-step explanation:

Given Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC. We have to find the length of side of rhombus.

It is also given that AB=a and AC=b

Let side of rhombus is x.

In ΔCEF and ΔCBA

∠CEF=∠CBA (∵Corresponding angles)

∠CFE=∠CAB (∵Corresponding angles)

By AA similarity rule, ΔCEF~ΔCBA

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