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Sagot :
Answer:
Step-by-step explanation:
7)
perimeter of a circle is d[tex]\pi[/tex]
50[tex]\pi[/tex]= 157.0796 for both of the circular ends
plus 200 for the two straights
357.07 m
8)
the triangle is 8*2.5 =20 for both sides
10*10 = 100
and 5*7=35 but that's a negative , it's subtracted
120-35=85
85 [tex]in^{2}[/tex]
Now go out side and get exercise :)
Answer: 65in
Step-by-step explanation:
Break the trapezoid into a rectangle (8in by 10in) and the leftovers are 2 triangles. Find the area for the triangles. Because the top of the trapezoid is 10in and the bottom is 15in, then we know that 15-10 = 5 and that the triangles are 2.5in by 8in. Because the triangles are the same congruent, then just multiply 8 by 2.5 to get 20.
Find the middle part now, which is 8 times 10 to get 80. Then 80 + 20 = the area of the trapezoid.
Lastly, subtract the non shaded region (7x5=35) and then 100-35 = 65
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