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Zigmanuir [339]
2 years ago
15

Need help asap no trolls please!!

Mathematics
1 answer:
maks197457 [2]2 years ago
8 0

Answer:

These triangles cannot be proven congruent

Step-by-step explanation:

If all sides and angles of a triangle is congruent to the corresponding sides and angles of another triangle, both triangles are congruent to each other.

This means, they have the same shape and size.

Invariably, knowing just the angles of two triangles are congruent to each other, is not enough to prove that the two triangles are congruent to each other.

Two triangles might have the same angle measure but different size lengths. This means they can have the same shape but different size.

With the information given in the diagram, we can only say that both triangles are similar to each other. However, we cannot prove they are congruent to each other.

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3 years ago
If line AD is a tangent to circle B at point C, and m ABC = 55°, what is the measure of BAD?
nikdorinn [45]

Answer:

145°

Step-by-step explanation:

There are a couple of ways you can get there:

1. ∠ACB is a right angle, 90°. Hence, ∠BAC is the complement of ∠ABC, so is ...

... ∠BAC = 90° -∠ABC = 90° -55° = 35°

Then, ∠BAC and ∠BAD are a linear pair, so total 180°. That makes ∠BAD the supplement of ∠BAC, so ...

... ∠BAD = 180° -35° = 145°

2. ∠BAD is the exterior angle at A for the triangle ABC. It will have a measure that is the sum of the opposite interior angles: given ∠ABC = 55° and right angle ACB = 90°.

... ∠BAD = 55° +90° = 145°

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3 years ago
Find the quadratic equation whose roots are -3 and 1​
Dmitrij [34]

Answer:

x²+2x-3=0

According to Vieta's formula:

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Product of roots=-3×1=-3

The equation is x²-(-2)x+(-3)=0

x²+2x-3=0

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Step-by-step explanation:

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