Ojos del salado is the highest mountain in chile, with a peak at about 6900 meters above sea level. the atacama trench, just of the coast of peru and chile, is about 8100 meters below sea level at (at its lowest point) a. what is the difference in elevations between mount ojos del salado and the atacama trench? b. is the elevation halfway between the peak of mount ojos del salado and the atacama trench above sea level or below sea level? explain without calculating the exact value. b. what elevation is halfway between the peak of mount ojos del salado and the atacama trench?

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.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).