Answer:
I think
11cm²-5cm²=121+25
and the square root of that will give you 12.08
and that's the answer
Answer:
C) supplementary angles
D) straight angle
Step-by-step explanation:
There is a straight line, and when an angle is a straight it means its 180 degrees which makes it a supplementary angle and a straight angle.
There are no angles that are 90 degrees so its not complementary or a right angle.
Answer:
Y=20
Step-by-step explanation:
90= (4y+10)
90-10=4y
80=4y
Y=80/4= 20
