Answer:
77.25 cm^2
Step-by-step explanation:
Area of a regular octagon :
2a^2(1 + (sqrt2))
where a is the side
substitute 4 in for 'a'
-1.0, -3/4, 0.25, 3/2
hope this helps :D
Answer:
hi
Step-by-step explanation:
A is 50 and B is 10
then, C is 5
50+10=60
50-10=40
50÷10=5
have a nice day
4x+10=90
4x=80
x=20
Why 90°? This is because the angle subtended in a semi-circle to the circumference is 90°.