MATH help plzz?

Question

1: The sum of the measures of the angles in a triangle is _______ degrees.

A. Pi
B. 360
C. 180


2: If the measures of two angles in a triangle are 40 degrees each, then the measure of the other angle must be _______ degrees.

A. 50
B. 100
C. 140


3: A triangle with at least two sides of equal length is called _______.

A. Scalene
B. Isosceles
C. Equilateral


4: A triangle with one angle of measure 90 degrees is called a(n) _______ triangle.

A. Right
B. Acute
C. Obtuse


5: A triangle with all three angles of the same measure is called a(n) _______ triangle.

a. Scalene
b. Isosceles
c. Equilateral


6: If two triangles are congruent, then all _______ corresponding parts are congruent.
A. 3
B. 6
C. 4


7: If two sides and the _______ angle of one triangle are congruent to two sides and the _______ angle of another triangle, then the triangles are congruent.

A. Smallest
B. Opposite
C. Included


8: If the three _______ of one triangle are congruent to the three _______ of another triangle, the triangles are congruent.

a. Sides
b. Angles
c. Vertices

Answer 1

This is all basic geometry so if any of these answers don't make sense, I suggest you talk to your teacher so you understand the answers.

Some of these are definitions and facts that you should know (180 degrees in a triangle, definition of congruent vs. similar, types of triangles - scalene, isosceles, equilateral, right, obtuse, etc.)

1: The sum of the measures of the angles in a triangle is _______ degrees.
C. 180

2: If the measures of two angles in a triangle are 40 degrees each, then the measure of the other angle must be _______ degrees.

40 + 40 + x = 180
80 + x = 180
x = 100

B. 100

3: A triangle with at least two sides of equal length is called _______.
B. Isosceles

4: A triangle with one angle of measure 90 degrees is called a(n) _______ triangle.
A. Right

5: A triangle with all three angles of the same measure is called a(n) _______ triangle.
c. Equilateral

6: If two triangles are congruent, then all _______ corresponding parts are congruent.
3 angles and 3 sides --> 6 parts
B. 6

7: If two sides and the _______ angle of one triangle are congruent to two sides and the _______ angle of another triangle, then the triangles are congruent.
SAS (side-angle-side).
C. Included

8: If the three _______ of one triangle are congruent to the three _______ of another triangle, the triangles are congruent.
Angles could mean they are similar, but sides will force them to be congruent.
a. Sides