Say about the angles? D'
DO THIS
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A
Let ABCD be a parallelogram (Fig 3.23). Copy it on
a tracing sheet. Name this copy as A'B'C'D'. Place
A'B'C'D' on ABCD. Pin them together at the point
where the diagonals meet. Rotate the transparent sheet
by 180°. The parallelograms still concide; but you now
find A' lying exactly on C and vice-versa; similarly B'
lies on D and vice-versa.
В'
Fig 3.23
Does this tell you anything about the measures of the angles A and C? Exami
me for angles B and D. State your findings.
property: The opposite angles of a parallelogram are of equal measure.
TRY THESE

answer: i think it's a

step-by-step explanation:

is means division by fractions

step-by-step explanation:

4x and 6y

im not sure though

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500