Triangle a b c is cut by line segment s t. line segment s t goes from side a b to side c b. lines s t and a c are parallel. the length of s b is 10 feet, the length of b t is 9 feet, and the length of c t is 2.7 feet. what is the length of line segment s a? a) 1.89 ft b) 2.43 ft c) 3 ft d) 7 ft.

Option C.

Step-by-step explanation:

Given information: In triangle ABC, ST║AC, SB=10 ft, BT=9 ft and CT=2.7 ft.

Triangle proportionality theorem: If a line segment parallel to a side of a triangle then the line segments divides the remaining sides proportionally.

Using triangle proportionality theorem we get

On cross multiplication we get

Divide both sides by 9.

The length of SA is 3ft.

Therefore, the correct option is C.

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.

b

step-by-step explanation: