Given: Right angles are 90 degrees.
if-then: If it is a right angle, then it's 90 degrees.
Converse: If the angle is 90 degrees, then it's a right angle.
Inverse: If it is not a right angle, then it's not 90 degrees.
Contrapositive: If the angle isn't 90 degrees, then it's not a right angle.
Bi-conditional: It is a right angle if and only if it's 90 degrees.
Step-by-step explanation:
2L+2W= L*L+W*W= 2*2+2*2= 8
L= lenght
W= width
(the formula of a rectangle is P (perimeter) = 2W (the two widths added together) + 2L (the two lengths added together)
w=2l-p÷2; w=p-1÷2; w=p-21÷2 w=p-2w÷21????
No, .4 is larger then .12
Answer:
b)0, yes
Step-by-step explanation:
Given:
Vectors (4,8) . (6,-3)
Finding inner product of vectors:
= 4x6 + 8x-3
=24-24
=0
Now to check the angle between them using formula a.b=|a|.|b|cosθ
|a|= 
=8.9
|b|=
=6.7
Putting values of a.b=0 and |a|=8.9, |b|=6.7 in a.b=|a|.|b|cosθ we get,
0= 8.9(6.7)cosθ
cosθ =0
θ=90 degrees
Hence the two vectors are perpendicular !
Answer:
7 is the closest estimate for the side length cuz 7 (length) x 7 (width) = 49 squared.
Step-by-step explanation:
hope this helps
