quiz Flashcards

1
Q

what is a triangle?

A

a triangle is a closed figure in a plane consisting of three segments called sides.

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2
Q

how do we name triangle ?

A

a triangle is named using the capital letters assigned to its vertices in a clockwise or counterclockwise direction.

so basically its named using its vertices,

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3
Q

what is a scalene triangle?

A

a triangle with no congruent sides or angles

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4
Q

what is an isosceles angle?

A

two sides are congruent and two angles that are congruent.

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5
Q

what are base angles in an isosceles?

A

the two angles that are congruent.

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6
Q

what is an acute angle?

A

an angle where all three angles are acute.

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6
Q

what is an equilateral angle?

A

all three sides and angles are congruent.

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6
Q

what is a right triangle?

A

-only one angle is a right angle.
- the other two are acute angles.
-the two acute angles are complementary

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7
Q

what is an obtuse triangles?

A

only one angle is an obtuse angle

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7
Q

what is the triangle angle sum theorem?

A

m<A=m<B+m<C=180

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8
Q

what is the exterior angle theorem?

A

m<1=m<A+m<B

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