xcji2277
23.07.2019 •
Mathematics
What is the total perimeter of this figure? express your answer in feet. 64.26 ft 49.26 ft 76.26 ft 104.52 ft
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Ответ:
perimeter of the figure=perimeter of semi circle+perimeter of rectangle
so
perimeter of semicircle=2*pi*r/2> pi*r
diameter=6 yd
radius r=6/2> r=3 yd
convert to ft
1 yd > is equal to 3 ft
3 yd> x
x=3*3> x=9 ft
so
diameter=18 ft
radius=9 ft
perimeter of semicircle=pi*9> 28.26 ft
perimeter of rectangle=18+15+15> 48 ft
perimeter of the figure=28.26 ft+48 ft> 76.26 ft
the answer is
76.26 ft
Ответ:
43.68cm²
Step-by-step explanation:
slanted height(l)= 3.46cm
side of base(a)=4cm
now,
TSA=2al+a²
=2×4×3.46+4²
=27.68+16
=43.68 cm² ans