Answer:
US is parallel to RT, and UR is parallel to ST
ST is perpendicular to US and UR is perpendicular to RT
Basically anywhere that there's lines that make right angles are perpendicular to each other
I hope this helps
Step-by-step explanation:
Answer:
1. volume = L
2. length = m
3. area = m²
4. mass = kg
5. weight = lbs
6. density = g/cm³
Step-by-step explanation:
i learned this stuff
Answer:
b
Step-by-step explanation:
done it
Answer:
Step-by-step explanation:
cos ^-1(0)=(2n+1) π/2
where n is an integer.
if 0 ≤α ≤2 π
n=0,1
cos ^-1(0)=π/2,3π/2