All angles in a triangle add up into 180. Therefore, if one of them is 90 (the right angle), and the other is 55, you can work out the last angle by doing 180 - 90 - 55 = a.
a = 35 degrees.
Angle b can be worked out by knowing the fact that a straight line has an angle of 180 degrees. We know that angle a is 35, so angle b will be 180 - a, so you do 180 - 35, which is 145 degrees.
b = 145 degrees.
Angle c is the same as angle a (they share a line), so it's 35 degrees too.
Answer:
He needs 3 more pieces.
Step-by-step explanation:
one half goes into six twelve times, so he has 12 pieces. Meaning he needs three more if he needs fifteen pieces all together.
10=b(10)
10=10b
Divide by 10 on both sides
1=B
So first, we need to find how much the tip is, which is 20% of $70. Or, 0.2*70, which equals $14. Micheal will pay $14 as tip.
Then to find total, we add 14 to 70, which is $84, which is the total bill.
Answer:
77° or 103°
Step-by-step explanation:
All of the angles are either the given angle or its supplement. Corresponding angles are congruent, as are vertical angles. Any linear pair of angles will add to 180°.