Because the 2 sides of the triangle are the same, they are both 21, the two bottom angles would also be the same.
The 3 inside angles of a triangle must equal 180 degrees.
The top angle is given as 38, so the remaining two angles must equal 180 - 38 = 142 degrees.
Since the 2 bottom angles would be the same, divide 142 by 2 to get x.
X = 142 / 2 = 71 degrees.
Answer:
1. 180
2. x = 31
Step-by-step explanation:
1. the sum of the interior angles of every triangle is always 180
2. using what we know from problem 1, we can create an equation:
x + 10 + 2x - 5 + 2x + 20 = 180
add like terms: 5x + 25 = 180
subtract 25 from both sides: 5x = 155
divide both sides by 5: x = 31
Answer:
7 1/2
Step-by-step explanation:
How many times does 6 fully go into 45?
7 times.
7 times 6 is 42, so subtract that from 45 and you will get 3/6 left over after finding 7 as a whole number.
simplify 3/6: 1/2
Answer:
1st one and the third one
Step-by-step explanation:
25(0)=25
25+0=25
