Given AC and BD are perpendicular bisectors, we can say that at point E, there are 4 right angles [perpendicular bisectors intersect to create 4 90 degree angles].

Now, if we look at the triangle AED, we know that it is a right triangle, meaning that angle E is a right angle.

Also,

We know sum of 3 angles in a triangle is 180 degrees. Thus, we can write:

∠A + ∠E + ∠D = 180

<em>Note: Angle A and Angle D are just the half part of the diagram. More exactly we can write:</em>

∠EAD + ∠ADE + ∠DEA = 180

Given,

∠EAD = 56

∠DEA = 90

We now solve:

∠EAD + ∠ADE + ∠DEA = 180

56 + ∠ADE + 90 = 180

146 + ∠ADE = 180

146 + x = 180

x = 180 - 146

x = 34°

4 0

3 years ago

Is {(0, 2), (3, 8), (–4, –2), (3, –6), (–1, 8), (8, 3)} a function?

RideAnS [48]

Answer: no

Step-by-step explanation:

Each of the domain values, x, output a single value, y, in a function.

This set is a not function, because the domain value 3 has two outputs.

7 0

2 years ago

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