A bottle of height 8 cm has a volume of 120 cm . Find the volume of a similar bottle of height 24 cm
1. A bottle of height 8 cm has a volume of 120 cm . Find the volume of a similar bottle of height 24 cm
Jawab:
128
Penjelasan dengan langkah-langkah:
120 + 8 = 128
2. b) the height of a 176 cm tall boy to the height of a 160cm tall girl
Jawaban:
tinggi 176 dan 160 cm dengan perbedaan sangat jau karena 176&160 lebi tinggi dari pada 160
3. On a particular day the height of the tide of east coast park was 0.8 meter. at dusk, the height of the tide increased by 40%.find the height of the tide of the desk.
Jawab:
.48 m
Penjelasan dengan langkah-langkah:
.8 × .6 = .48
4. when a 1.6 tall person stands 10 m from the base of an electric light pole the shadow of the person is 2.1 m long. find the height of the globe above around levelhelp please
Jawaban:
1.6+2.1m=3,7×10=37
Penjelasan dengan langkah-langkah:
maafya kalau salah satunya yang ini cantik yang ga kenal dengan nama Aufa apa saja untuk menjaga agar kulit tetap kencang yang ini jelek di hapus apa saja dan tidak mudah untuk menjaga dan merawat di hapus apa saja dan tidak mudah
5. A temple is drawn using a scale of 1: 500. The height of the temple on the drawing is 7 cm. Find the actual height of the temple in meters.
Answer:
35 metresExplanation and steps to answer:
Given that:
Scale (S) = 1 : 500
Height on the drawing (Dh) = 7 cm
Find the actual height (Ah)!
Use this equation:
Ah = Dh/SAh = 7 / (1/500)
Ah = 7 × 500
Ah = 3,500 cm
convert it into m
3,500 cm = 3,500/100 m =
35 metresof actual height.
_____________
#Genius - kexcvi
6. tolong jawab ya pelajaran SD 1. A scale picture of a building is made to a scale 5 cm representing 15 m. If the height of the building on the picture is 8 cm, find the actual height of the building.2. A company makes a miniature motorbike to a scale of 1:24. If the length and height of the miniature motorbike is 8 cm and 5 cm successively, what is the actual length and height of the motorbike ?pelajaran math
Jawaban:
Skala = 5 cm : 15 m
= 5 cm : 1500 cm
= 1 : 300
Tinggi sebenarnya = tinggi gambar : skala
= 8 cm / 1:300
= 8 cm/1 x 300
= 2400 cm
= 24 m
7. 15. circular cone has a height of 17 mm and a slantheight of 21 mm. Find(i) the volume(ii) the total surface area,of the cone.
15.kerucut bundar memiliki tinggi 17 cm dan tinggi miring 21 cm. temukan volume total luas permukaan kerucut.
jadikan yang terbaik☺️
8. the perimeter of a wall is 36m .its lenght is 15m find the height of the wall
[tex]\begin{align} \text{Perimeter } &= 2(\ell + h) \\ 36 &= 2(15+h) \\ 18 &= 15+h \\ h &= 3\:\text{m} \end{align}[/tex]
9. The perimeter of a rectangular TV screen is 150 cm. The ratio of the width to the height is 16:9. Find the area of the screen.
Answer/Jawaban:
1296 cm^2
Explanation :
Given the perimeter is 150 cm, meanwhile the ratio of the width and the height is 16 : 9. Assume the width and the height is 16x and 9x. We can substitute to the perimeter formula :
P = 2(16x + 9x) = 150 cm
<=> 2.25x = 150 cm
<=> 50x = 150 cm
<=> x = 3 cm
So, the width is 16 x 3 cm = 48 cm, meanwhile the height is 9 x 3 cm = 27 cm.
We can conclude that the area of the screen is 48 x 27 = 1296 cm^2.
Penjelasan :
Diketahui kelilingnya 150 cm, sedangkan perbandingan lebar dan tingginya 16 : 9. Misalkan lebar dan tingginya adalah 16x dan 9x. Kita bisa masukkan ke rumus keliling :
P = 2(16x + 9x) = 150 cm
<=> 2.25x = 150 cm
<=> 50x = 150 cm
<=> x = 3 cm
Jadi, lebarnya adalah 16 x 3 cm = 48 cm, sedangkan tingginya adalah 9 x 3 cm = 27 cm.
Kita bisa simpulkan bahwa luas layarnya adalah 48 x 27 = 1296 cm^2.
10. A Kid standing 15m away from the base of tower whose height is 10m if the shadow the kid makes is 3m long. find the height of the kid(round the result to the nearest cm)
Jawaban:
200cm ,caranya ada di gmbr
11. A cone has a circular base of radius 8 cm and height of 17 cm. Find the volume of the cone.
r = 8 cm
t = 17 cm
Volume
= 1/3 . π. r². t
= 1/3 . 3,14 . 8² . 17
= 1/3 . 3,14 . 64 . 17
= 1.138,77 cm³
12. A cone has a height of 8.4cm. Given that the cone has a vertical angle of 72, find the diameter of the circular base
R = h / tan 72 = 8,4 / tan 72 = 2,72 cm
D = 2R = 5,44 cm
13. The heights of three poles A, B, and C are 3 m, 10 m, and 5 m, respectively. The distance between pole A and pole C is 30 m. The pole B is between pole A and pole 30 m C. A light is put at the top end of pole B. The length of the shadow of pole A equals the length of the shadow of pole C. The distance between pole A and pole B is ....
Jawaban:
a.and pole 30m
Penjelasan dengan langkah-langkah:
may be useful.
14. a) find the height of the cuboid volume = 504 cm3 area = 60 cm2 kka tolongin...
Jawaban:
height = 8,4 cm
Penjelasan dengan langkah-langkah:
Diketahui
Volume cuboid = 504 cm3
Area = luas = 60 cm
Ditanyakan
Height of the cuboid ....
Jawab
V = A x H
504 cm3 = 60 cm2 x H
H = 504 cm3 / 60 cm2 = 8,4 cm
Jadi the height of the cuboid 8,4 cm.
Semoga bermanfaat.
15. A temple is drawn using a scale of 1: 500. The height of the temple on the drawing is 7 cm. Find the actual height of the temple in meters.
Jawaban:
35 metres
Penjelasan dengan langkah-langkah:
ah = dh : s
ah = 7 cm × 500
ah = 3500 cm
ah = 35 m
16. a cylinder and a cone of the same height 2r and the same base diameter 2r. A sphere has a diameter of 2r. Find the ratio of the volume of the cylinder to that of the cone and to that of the sphere
Jawab:
6:1:4
Penjelasan dengan langkah-langkah:
Volume of the cylinder = [tex]\pi r^{2}h=\pi r^{2}(2r)=2\pi r^{3}[/tex]
Volume of the cone = [tex]\frac{1}{3} \pi r^{2}h=\frac{1}{3} \pi r^{2}(2r)=\frac{2}{3} \pi r^{3}[/tex] and,
Volume of the sphere = [tex]\frac{4}{3} \pi r^{3}[/tex]
thus, the ratio of the volume of the cylinder to that of the cone and to that of the sphere are
Volume of the cylinder : Volume of the cone : Volume of the sphere
[tex]2\pi r^{3}:\frac{2}{3} \pi r^{3}:\frac{4}{3} \pi r^{3}\\=2:\frac{1}{3} : \frac{4}{3} \\=6:1:4 \\[/tex]
17. From a point 120 feet from the base of a hill, the angle of elevation of the top of the hill is 38°. Find the height to the top of the hill. (The ground is flat.)
Jawaban dan penjelasan dengan langkah-langkah:
18. find the volume of a cone of a base area 30 cm² and height 15 cm
Jawab:
150cm³
Penjelasan dengan langkah-langkah:
V=ABh
3=30·15
3=150cm³
19. find the surface area of a cylinder of radius 5cm and height 10cm
Jawaban:
=150πcm
Penjelalasan:
Given
The Radius of a solid cylinder (r)=5cm
Height (h)=10cm
Hence
Total surface area =2πrh+2πr
2
=2πr(h+r)
=2π×5(10+5)
=π×10×15
=150πcm
(don't forget to give thanks:)
20. find the surface area of a cylinder of radius 6cm and height 7cm
Penjelasan dengan langkah-langkah:
CIRCLE
r = 6 cm
h = 7 cm
S.a = 2πr(r + h)
S.a = 2 × 3,14 × 6 × (6 + 7)
S.a = 37,68 × 13
S.a = 489,84 cm² ✔
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