For a.
Since there are already two angles given for the triangle, we can measure the last angle using this formula:
90 + 55 + a = 180
Now solve for "a".
90 + 55 + a = 180
145 + a = 180
a = 180 - 145
a = 35°
For b.
From the picture above, the two triangle's tip are touching and having to form <em>vertical angles. </em>This means that the angles are congruent to each other.
Now that we have two angles in the second triangle(35 and 120), we can use the same formula:
35 + 120 + b = 180
Now solve for "b":
35 + 120 + b = 180
155 + b = 180
b = 180 - 155
b = 25°
Answer:
Square
Step-by-step explanation:
Squares are quadrilaterals
Squares have two sets of parallel sides
Squares have four right angles
Squares sides are all congruent.
Answer:
Step-by-step explanation:
Answer:
When randomly selecting an adult, A denotes the event of selecting someone with blue eyes. What do P(A) and P([math] \overline A [/math]) represent?
Step-by-step explanation:
Here we are looking for the percentage of beads out of the total that Paco received that were orange.
The total number of beads Paco received is equal to orange + the different color. 45 + 5 = 50 total beads
Then, we'll need to create a fraction for the number of orange beads Paco received over the total number of beads. 45 / 50
Lastly, we can use our calculator to find a decimal number for the proportion of orange beads. 0.90
Multiply 0.90 by 100 to get the percentage. 90% orange beads
Hope this helps!! :)
