87.6k views
2 votes
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS

4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS-example-1
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS-example-1
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS-example-2
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS-example-3
4 MATH QUESTIONS AND YOU WILL GET 20 POINTS PLEASE PLEASE HELP I NEED THIS-example-4
User Kirrosh
by
4.7k points

1 Answer

4 votes

Answer:

1. x=160 (here given as ques no. 5)

2. x=81 (here given as ques no.5)

4. No (here given as ques no. 8)

Explanation:

1. Given ∠STR=∠SRT=20°

we know ∠STR+∠STU=180

x+20=180

x=160

2. By external angle property

x+24=105

x=81

3. By Angle Sum Property

∠ 1=∠2=∠3=∠4=90

and

∠5=∠6=∠7=∠8=90

Hence all angles are equal to 90

and we know only parallel lines have

∠4=∠5

∠3=∠6

hence line 'r' and line 't' are parallel.

4. For being parallel side pieces must not form a triangle(i.e. sum two interior angle must be equal to 180)

But here sum of interior angle 174

Hence a triangle is possible.

So , lines are not possible .

User Julio Feferman
by
5.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.