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12. find the approximate area of fort jefferson, which approximates a regular pentagon,
in dry tortugas national park, florida if each side is 460 feet long and an apothem is
about 398 feet long.
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3. a civil engineer is able to determine that 50,000 cubic yards of gravel is in the shaded
ond hown how many cubic yards of gravel would you estimate

answer is 67%

step-by-step explanation:

10000

step-by-step explanation: divide by 2,

i use my brain for prombles like this maybe you could try it

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.