Ira has $100 in his savings account. He is looking at two savings plans. Under plan
A, he will increase his account balance by
$10 a year. Under plan B, he will increase
his account balance by 10% each year.
a. Write an equation for the amount Ira
will have with plan A.
b. Write an equation for the amount Ira
will have with plan B.
c. To the nearest hundredth, how much
would Ira save in 3 years under plan
A? How much would he save under
plan B?

practice. practice. practice.

solution:

we have to construct

∠m nt ≅ ∠p qr

the steps to draw this construction are

step 1: use a compass to draw an arc from point q which intersects the side pq at point a and the side qr at point b.

step 2: draw a segment nt and use the same width of the compass to draw an arc from point n which intersects the segment nt at a point x.

step 3:

step 4: join points n and y using a straightedge.

step 3:

option (d).maintaining the same width of the compass as ab, draw an arc from point x such that it intersects the arc drawn from n in a point y.

to draw   congruent angles , 1. width of compasses while drawing two angles should be same i.e from point at which angle has to be drawn, 2.the distance between the two points where the compass intersects the two sides should be same while drawing any two congruent angles.