3) 45 degrees as a straight line is 180 degrees and 180-135 is 45.
4) 45 degrees as the same principle applies, also opposite angles are equal
5) 135 degrees because opposite angles are equal
hope this helps a bit!
Answer:
The answer is
Step-by-step explanation:
By using Pythagoras low
Then we can find that
Answer:4π
Step-by-step explanation:
Φ=72
Radius=r=10
Length of arc=Φ/360 x 2 x π x r
Length of arc=72/360 x 2 x π x 10
Length of arc=0.2 x 2 x π x 10
Length of arc=4π
Answer:
x = 64°
Step-by-step explanation:
180° in half a circle or a line.
There is also 180° in a triangle.
So the other 2 angles of the triangle equal x.
34° + 30° = 64°
Answer:
B & C
Step-by-step explanation:
Okay I don't know much you need explained so I'm gonna explain pretty much everything. Starting off, you need to follow the PEMDAS rules. PEMDAS stands for Parentheses, Exponents, Multiplication, Division, Addition, and Subtraction. So when solving you have to do it in this order.
A-(5)(0.6)*7=21
B-(4/5)(15)+8=(0.8)(15)+8=20
C-4(8+2)/2=4(10)/2=40/2=20
D-14+4(2+3)=14+4(5)=14+20=34
If you need any clarification just lmk :)
