Answer:
62.5 feet
Step-by-step explanation:
first you find the area of the triangles by using the formula b*h /2 to get 9 3/8. then since they are all the same size you can multiply it by 4 to get 37.5. then you find the area of the square which is 25. finally add the totals together to get 62.5
Π=3.14159265359 so I guess 1, is the answer
You can use trig here - you want to know the angle opposite from the shortest side, which we'll call "A," and you have the sides that touch the right angle. side A (21 inches) and side B (25 inches) intersect at a right angle, so the side we're missing is the hypotenuse. the angle across from side A is angle "a" - now, since we know which side is the hypotenuse, we can figure out which trig function works here. angle "a" can be found by doing tan(a)=Opposite/Adjacent --> tan(a)=A/B --> tan(a)=21/25 --> a=tan^-1(21/25). a = 40.03 degrees
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