Complete the sentence to describe the triangle shown. part 1
A) an acute triangle
B) an obtuse triangle
C) a right angle
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part 2
A) an equilateral triangle
B) an isosceles triangle
C) a scalene triangle

B) obtuse and B) isosceles

Step-by-step explanation:

obtuse - theres an angle greater than 90 degrees

isosclese - two sides of equal length

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

i think it is 70

step-by-step explanation: