1-the main show tank has a radius of 70 feet and forms a quarter-sphere. What is the volume of the quarter-sphere shaped tank? round your answer to the nearest whole number . You must explain your answer using words ,and you must show all work and calculations to receive credit .(2points)

i think its a and d

step-by-step explanation:

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.

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105