1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lapo4ka [179]
3 years ago
8

Select all that apply.

Mathematics
2 answers:
Tasya [4]3 years ago
8 0
All of a triangles angles add up to 180, this is known as the triangle sum conjecture.


an Iscoceles triangle is a triangle that has two or more congruent sides.

if a triangle is Iscoceles then th e two angles that are made by the congruent sides and base are also congruent.

if you know that one of the angles is 20 that. The sum of the other two angles must be 160.

That means that answer 2 and 4 are incorrect.

Answers 1 and 3 both have a total angle sum of 160. since this is true the correct answer depends on where the known angle is. If it is the angle that is formed by the two congruent sides than the answer is number one. but if it is formed by one of the congruent sides and the base then the answer is number 3.
11Alexandr11 [23.1K]3 years ago
4 0

Answer: 80° and 80°

20° and 140°

Step-by-step explanation:

An isosceles triangle is a kind of triangle that has two equal angles.

Given : In an isosceles triangle, one angle measures 20°.

If it is one of the equal angles , then one other angle must measures 20°.

and Third angle = 180°- 20°- 20°  [ By Angle sum property of triangle]

= 140°

i.e. the measures of other two angles would be 20° and 140°.

If it is not one of the equal angle  then we let the measure of equal angles as x.

By angle sum property of triangle , we have

x+x+20°=180°

⇒ 2x = 160°

⇒ x =80°

i.e. measures of other two angles would be 80° and 80°.

Thus , the correct choices are :

80° and 80°

20° and 140°

You might be interested in
Pleaseeeeeee I need helpppp
Dimas [21]

Answer:

I think it's 34

Step-by-step explanation:

cuz you add 11 and 12 frequency

6 0
3 years ago
Read 2 more answers
15y + v4-8<br> What is the degree
natulia [17]

Answer: The degree of 15y+v4-8 is 1

Step-by-step explanation: Hope this helps in your studies!

6 0
2 years ago
Joe swam a total of 558 labs at the pool during the summer swam 7 laps each day except the last day he swam fewer laps how many
Natasha_Volkova [10]

Answer:

the number of laps he swam the last day = 5 laps

Step-by-step explanation:

Total swimming = 558 laps

Number of days = 79⁵/₅₅₈ days

Hence the number of laps he swam the last day = 5 laps

8 0
3 years ago
Read 2 more answers
Evaluate <br> 12^2<br><br> 1. 144<br> 2. 24<br> 3. 266
pogonyaev

Answer:

The answer is 144

Step-by-step explanation:

12*12

12²

144

6 0
2 years ago
((Use the graph shown below to fill in the blank.))
Naily [24]
When x is 4 the diagonal line is on the first line above the 4 so that would be y=1
7 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP!!!! I’m stuck<br> What is the measure of What is the measure of
    13·1 answer
  • HELP ME PLEASE!! I need help
    7·1 answer
  • Please help me with this
    8·1 answer
  • Find two consecutive odd integers whose sum is 16​
    6·1 answer
  • Look at the student work shown below.
    7·1 answer
  • Three research departments have 8,6,7 members, respectively. Each department is to select a delegate and an alternate to represe
    9·1 answer
  • Why are arithmetic sequences discrete data?
    10·2 answers
  • If the figure is translated 4 units and 2 units down what are the coordines
    8·1 answer
  • The sum of Ken's, k, and Alan's, a, ages is 62. Ken is 31 years older than Alan.
    11·1 answer
  • Which is the graph of the circle (x−2)2+(y−1)2=25?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!