The figure shows a square with sides 14 cm. Calculate the area and perimeter of the shaded region. (Take π=22/7)
1. The figure shows a square with sides 14 cm. Calculate the area and perimeter of the shaded region. (Take π=22/7)
Jawaban:
AREA = 98cm²PERIMETER = 88cmPenjelasan dengan langkah-langkah:
Info :
s ( side ) = 14cm
r ( radius ) will be half of s (side)
r ( radius ) = 7cm
π = 22/7
______________
Area :
=> we will divide a square into 2 rectangles :
A rec = s × r
A rec = 14cm × 7cm
A rec = 98cm²
=> Area of Semicircle :
A sc = ½ × π × r²
A sc = ½ × 22/7 × (7cm²)
A sc = 11 × 7cm²
A sc = 77cm²
=> Area equal to 1 Area of semicircle +
(1 Area of rectangle - 1 Area of semicircle)
A = A sc + (A rec - A sc)
A = 77cm² + ( 98cm² - 77cm² )
A = 77cm² + 21cm²
A = 98cm²
Perimeter :
=> Perimeter ( P ) in the question formed by
4 perimeter of ¼ circle :
P = P ¼ circle + P ¼ circle + P ¼ circle + P ¼ circle
P = P circle
P = 2 × π × s
P = 2 × 22/7 × 14cm
P = 88cm
2. find the interior angle of a regular polygon with :a. 12 sidesb. 15 sides
Jawab:
Penjelasan dengan langkah-langkah:
a,
(n-2) x 180°
= (12-2) x 180°
=10 x 180°
= 1800°
b.
(n-2) x 180°
= (15 - 2)x 180°
= 13 x 180°
=2340°
3. the vertices of the regular hexagon ABCDEF lie on a circle as shown in the figure. The diameter of the circle is 50 centimeters. The perimeter of the hexagon is...cm.
d = 50 cm
K =....?
K =
[tex]\pi \times d = 3.14 \times 50 \: cm = 157 \: cm[/tex]
nih hasilnya........
4. Find the area of the figure above
162cm2
Thanks saya kalau benar
5. The figure shows a quarter circle with radius 7 cm. What is the perimeter of the quarter circle?
r = 7 cm
1/4 p = ( 1/4 x π x 2 x r ) + 2r
(1/2 x 22/7 x 7 cm) + 14 cm
11 cm + 14 cm = 25 cm
6. 87. Total sides of the hexagon are
Jawaban:
the hexagon are six if i wrong sorry
7. the text above shows that
1. C) Esther is the best singer
Sorry if I wrong :"
Maaf kalau salah :"
C. esther the best singerkarena disitu si penulis, ceritain kalo esther ini penyanyi terbaik☺️
8. The text above shows that
Jawaban:
Teks diatas menunjukan itu
#backtoschool2019
9. A road is in the shape of a regular hexagon (six-sided figure) with each side of length 6 km. Suppose a car starts at a corner and more along the road for a distance 20 km. Let the distance of the car from its starting point be x km, find the value of x²
(AA')² = AD²+(DA)²-2·AD·DA'cos60°
(x)² = (12)²+(2)²-2·12·2·1/2
= 148-24
= 124
10. the figure shows a human urnaey syestem
Ginjal (Kidney), bagian sistem yang mengatur urinasi/urinea
11. The text above shows that
Jawaban:
Artinya : Teks diatas menunjukkan
Maaf klo salah,,,
12. the figure shows a human urinary system.the function of Q os to...
I think it's A mate...
13. 2. The figure shows a semicircle and an equilateral triangle. Find the perimeter of the figure. (Take it 3.14) att
Jawaban:
semoga bermanfaaat...........................
14. The taxe above shows that
Penjelasan:
Taksi di atas menunjukkan itu
15. a figure with three sides is called a
Jawaban:
triangle
Penjelasan:
A polygon with three sides is a triangle.
16. The next above shows theexpression of
Jawaban:
i dont knoww
you must compliting your question
17. The text above shows that?
Jawaban:
teks di atas menunjukan itu
Penjelasan:
maaf kalo salah
18. The figure shows circle of radius 14 cm with one quadrant removed, touching the sides of square. Find @ the perimeter of the unshaded region, (i) the area of the unshaded region, (iii) the area of the shaded region.
di antara nilai p berikut yang memenuhi proporsi p:7 21:49 adalah
19. 7. Hexagon has ... sidesa. five b. sixc. seven d. eight
b.six
maaf kalo salah :)
Jawaban:
b.six
Penjelasan:
because the hexagonal has sides and angles
20. 1. The verticles of the regular hexagon ABCDEF lie on a circle as E shown in the figure. The diameter of the circle is 50 cm. the perimeter of the hexagon is ... cm.a. 100 cmb. 200 cmc. 150 cmd. 350 cmplzzz gk paham
perimeter of hexagon = number of sides × 6
perimeter of hexagon = 50 cm × 6
perimeter of hexagon = 300 cm
So, the answer is 300 cm
not in options
Answer by sunshine girl
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