c5.24 cmThe perimeter of the isosceles triangle is 60 cm. what is thearea of the triangle?a. 11c. 18b. 24d. 29( )
1. c5.24 cmThe perimeter of the isosceles triangle is 60 cm. what is thearea of the triangle?a. 11c. 18b. 24d. 29( )
Jawab:
C. 18
Penjelasan dengan langkah-langkah:
Maaf kalau slaah
2. 19. Perimeter of triangle ABC is …
Area and primeter triangle
( luas dan keliling segitiga )
18. Area of triangle abc is
rumus : ½ x alas × t
= ½ x 30 x 20 x 15
= 15 x 20 x 15
= 300 x 15
= 4.500
19 . primater of triangle is
rumus : s + s + s
= 15 + 20+ 30
= 35 + 30
= 65 cm
thanks
3. The perimeter of an isosceles triangle is 36 cm. If the base is 10 cm, the area of the triangle is .... cm2. (Pythagorean Theorem)
Penjelasan dengan langkah-langkah:
½ kali 10 kali 36 =
10 kali 36 : 2 =
360 : 2 = 180 cm²
maaf kalo salah ^_^
Pythagorean Theorem"In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides".
Question:
The perimeter of an isosceles triangle is 36 cm. If the base is 10 cm of length, the area of the triangle is ... cm²
Step by step:
Isosceles triangle have 36 cm of its perimeter. The perimeter of triangle is calculated by sum of each side.
Finding length of each leg (x):
36 cm = 10 + x + x
36 = 10 + 2x
26 = 2x
x = 13 cm.
To find the height of triangle, use pythagorean theorem. Let height is written by "y".
[tex]\displaystyle\\y = \sqrt{13^2 - 5^2}\\\\y = \sqrt{169 - 25}\\\\y = \sqrt{144}\\\\y = 12~\text{cm}[/tex]
Calculate the area:
[tex]\text{Area of triangle:}\\\\\boxed{\frac{\text{base}\times\text{height}}{2}}[/tex]
[tex]\displaystyle= \frac{10 \times 12}{2}\\\\= \frac{120}{2}\\\\= 60~\text{cm}^2[/tex]
Conclusion:
The area of an isosceles triangle with 10 cm length of base and 36 cm of its perimeter is 60 cm²
============================
Lesson Category:
(based of the Indonesian Curriculum)
Class: 8th grade of junior high schoolSubject: MathematicsLesson Category: Pythagorean TheoremLesson Code: 8.2.44. Perimeter of triangle
mana soal nya
maaf kalo salah ya...
5. . The perimeter of a square is 8 cm. What is the area?*
Jawab:
Square perimeter = a x a x a x a
Square area = a x a
Square length, if the perimeter is 8 cm
= 8 ÷ 4
= 2 cm
2 x 2
= 4 cm²
Semoga membantu, jangan lupa jadiin jawaban tercerdas ya, makasih ^^
- Sasuke
6. 15 what is the perimeter of the plot of land
Jawaban:
15 apa primeter dari sebidang tanah?
Penjelasan dengan langkah-langkah:
terjamahan
7. The perimeter of triangle is P = 2m + 2m + 2m, If m = 8 cm. The perimeter is .... *14 cm24 cm28 cm48 cm
Jawaban:
Perimeter = 3(2m)
= 6m
= 6(8)
= 48 cm
8. figure B is made up of four identical right angled triangles as shown in figure A. Four times the perimeter of figure A is 96cm. The perimeter of Figure B is 48cm. What is the lenght of XY?tolong dibantu sesegera mungkin ya.. thanks. #math#matematika#triangle#perimeter
Jawaban:
6 cm
Penjelasan dengan langkah-langkah:
4(Keliling gambar A) = 96 cm
Keliling gambar A = 24 cm
Gunakan tripel Pythagoras
Segitiga 3-4-5 adalah segitiga siku-siku dan kelilingnya adalah (3+4+5) cm = 12 cm
Kalau mau dapatkan segitiga siku-siku dengan kelilingnya adalah 24 cm, maka tripel Pythagorasnya adalah 6-8-10 (Cuma dikali 2). Karena XY(alas segitiga) lebih pendek daripada tinggi segitiga, maka XY = 6 cm
9. Perimeter of a triangle is 217 cm.the ratio of the triangle sides are 5:9:17 find the length of each side of the triangle
Answer :
Known Values :
Perimeter (P) = 217 cm
Ratio of the sides = 5 : 9 : 17
First, find the value of each "1x" in the ratio ;
=> 217 cm : (5 + 9 + 17)
=> 217 cm : 31
=> 7 cm
Now, we can search each length of each side of the triangle according to the value of each "1x" we searched before.
"A" side :
=> 5 × 7 cm
=> 35 cm
"B" side :
=> 9 × 7 cm
=> 63cm
"C" side :
=> 12 × 7 cm
=> 84cm
So, we found the length for each side in the triangle are 35 cm, 63 cm, and 84 cm.
10. the area of a square is 49cm what is the perimeter of the square
[tex] {s}^{2} = 49 \\ s = \sqrt{49} \\ s = 7 \: cm\\ \\ perimeter \: = 4s = 4(7) = 28 \: cm[/tex]
11. The ratio of the sides of a triangle AB to BC to AC, is 3 : 4 : 5. The perimeter Of the triangle is 72cm Find the length of it's longest Side.
Jawaban:
The length of the longest side: 30cm
Penjelasan dengan langkah-langkah:
To find the length of the longest side:
5+4+3= 12
72÷12= 6
5×6= 30cm
12. What is the sum of all angles of a triangle?
jumlah dari seluruh sisi dari segitiga adalah 3.
semoga membantu ^_^
13. Arti dari what is the perimeter of the shape above
Jawaban:
artinya Berapakah keliling diatas?
semoga membantu14. What is the area of the right triangle shown below
ANSWER:
60.
Penjelasanya :
(theorema phytagoras) a=[tex]\sqrt{b^{2} -c^{2} }[/tex]
a= 17[tex]\sqrt{17^{2}-8^{2} } = \sqrt{289-64}[/tex]
a=[tex]\sqrt{225} =[/tex]15
(the area of the right triangle) :
1/2 x a x h
1/2 x 8 x 15
= 60
ur welcome:)
15. What is the perimeter of this rectangle ?
Jawaban:
32
Penjelasan dengan langkah-langkah:
2(p+l)
= 2(10+6)
= 2(16)
= 32
16. What is the area of the triangle shown below
a = 5
b = 5
c = 8
Keliling
= a + b + c
= 5 + 5 + 8
= 18
s = 1/2 x keliling
s = 1/2 x 18
s = 9
Luas
= √(s(s - a)(s - b)(s - c))
= √(9(9 - 5)(9 - 5)(9 - 8))
= √(9 x 4 x 4 x 1)
= √144
= 12 satuan luas
17. In ABC triangle , the ratio of the sides is AB : BC : AC = 2 : 4 : 5. If the perimeter of the triangle is 44 cm, find the length of BC.
Jawab:
BC = 16 cm
Penjelasan dengan langkah-langkah:
BC = 4 / (2+4+5) x 44 = 4/11 x 44 = 16 cm.
18. The lenght of the legs of an isosceles triangle is 4 meters more than its base. If the perimeter of the triangle is 44 meter. Determine the lenghts of the sides of the triangle!bantuin plisss
Jawaban:
4meter x 44meter = 176 meter
Penjelasan dengan langkah-langkah:
Sisi x sisi x sisi
Isosceles triangle = segitiga sama kaki.parimeter = keliling
k= 44m..
kaki nya = 4cm lebih dari sisi bawah.
caranya
K = a + b + c
44 = (4+x) + (4+x) + x
44 = 8 + 3x
44-8 = 3x
36 = 3x
x = 36/3
x = 12
berarti sisi nya =
kaki = 12+ 4 = 16m
sisi bawah = 12m
ini ya kak jawabannya ..
19. The sides of a triangle are (2x + 1) cm,(3x + 2) cm and (4x - 1) cm.2x+13x + 24x-1(a) Find the perimeter of the triangle interms of x.(b) If the perimeter of the triangle is 47 cm,find the value of x.
Jawab:
a. 9x cm
b. 5,2 cm
Penjelasan dengan langkah-langkah:
What is known :
side 1 = (2x+1) cm
side 2 = (3x+2) cm
side 3 = (4x-3) cm
a. Perimeter in terms of x
P = s1 + s2 + s3
= 2x + 1 + 3x +2 + 4x - 3
= 9x cm
b. Value of the x if the perimeter is 47 cm
P = s1 + s2 + s3
47 = 9x
x = 5,2 cm
Sorry If I'm wrong, hope it helps
20. The perimeter of a square is 36 m. What is the length of the side of the square
Answer:
Lengthofsquare:
Perimeter = length²
36 = length²
l = √36
l = √6²
l = 6cm
the length of square is 6cm
[tex]{\color{aqua}{\boxed{\mathfrak{LordKeyarga23}}\:}}[/tex]
Jawab:
a = 9 m
Penjelasan dengan langkah-langkah:
P = 4 a
36 = 4 a
a = 36 ÷ 4
= 9
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