Let me know if you want the answer, but what you need to do first is get the opposite angles.
They're on straight lines, so 180 minus that angle would equal the angle inside the triangle.
Then all inner angles if a triangle add up to 180° so 180 minus the two other angle would give you the final missing angle.
Do the straight line thing again and subtract 156 from it.
A)37 because is a prime number just sear up prime numbers on google
To nswer this you have to get a scientific calculator and multiply the number in the line of a and b times cos and then divide it for example the line a is 4.24 but when you multiply it by cos it is 0.997263104 and b is 3 but when you multiply by cos its 0.998629534, now divide 0.997263104 by 0.998629534 to get 0.998631694...
Hope this helps
171 + 727 = 898.
We can round it off to 900.
Answer:
120 cm
Step-by-step explanation:
If you rearrange the lines you will get a rectangle whose sides are 25 cm and 35 cm.
To get a triangle, move the lines inside the rectangle keeping them parallel to the lines in front of them.
Let P the perimeter of the rectangle:
P = 25*2 + 35*2 = 50+70 = 120 cm