Answer: The angles inside a triangle are called interior angles. ... The three interior angles in a triangle will always add up to 180°. At each corner the exterior and interior angles are on a straight line, so at each corner these two angles add up to 180°.
Step-by-step explanation:
Sal proves that the angles of an equilateral triangle are all congruent (and therefore they all measure 60°), and conversely, that triangles with all congruent angles are equilateral.
The ABE and DBC are both made of DBE and and ABD or EBC so if the firsts are equal than these are also equal
Answer: X=31
Step-by-step explanation:
The angles are supplementary because they add up to 180 degrees. Therefore, we will make the angles equal 180 degrees using
3x+25+2x = 180
combine like terms
5x+25=180
subtract the 25 from both sides
5x=155
divide each side by 5
answer x=31
Answer:
A is true and B is false.
Step-by-step explanation:
x + 6.2 ≥ 10.9
Replace x for 4.7...
4.7 + 6.2 ≥ 10.9
10. ≥ 10.9 ( So this is true!)
x - 6.2 ≤ - 5
Replace x for 4.7...
4.7 - 6.2 ≤ -5
-1.2 is not ≤ -5 (So this is false!)
Answer:
Sorry I need point's... :(
Step-by-step explanation:
