A triangle whose base is 6 cm long and height 10 cm. The area of the triangle is… cm2
1. A triangle whose base is 6 cm long and height 10 cm. The area of the triangle is… cm2
Answers and explanations:
Base (Alas) = 6 cm
Height (Tinggi) = 10 cm
Area of the Triangle:L = 1/2 x Base x Height
L = 1/2 x 6 x 10 = 30 cm^2
2. Triangle ABC is a right-angled triangle. Find
Triangle ABC is a right-angled triangle. Find
∠ABC = 90°
∠DBC = 25°
∠BAD = 60°
∠ABD = 70°
∠ADB = 55°
∠DCB = 32°
hope this helping :3
#learnwihbrainly
3. A triangle with 3 equal sides is a/ana. right angled triangleb. isosceles trianglec. equilateral triangled. scalene triangle
Jawaban:
the answer is= C. equilateral triangle
Jawaban:
Segitiga dengan 3 sisi sama panjang adalah a/an
Sebuah. segitiga siku-siku
b. segitiga sama kaki
c. segitiga sama sisi
d. segitiga siku-siku
Penjelasan dengan langkah-langkah:
C.equilateral triangle
4. what is the hypotenuse of a triangle with a base of 7cm and height √240 cm
17 cm
Penjelasan dengan langkah-langkah:
r² = 7² + (√240)²
= 49 + 240
= 289
r = √288
= 17 cm
5. ABC is a triangle. Identify the height of triangle ABC when CB is its base. a. AB b. AF c. CD d. CE
Jawaban:
(D)
Note
Semoga membantu maaf kalo salah
6. The base of a triangle is longer than twice its corresponding height by 1 cm. The area of the triangle is 105 cm?. Find the height of the triangle!butuh cepat
Jawaban:
52,5
Penjelasan dengan langkah-langkah:
105:2 sorry if wrong
Jawab:
The height of the triangle is 10 cm.
Penjelasan dengan langkah-langkah:
If the area, base and height of that triangle are notated by A, b and h, then it is known that:
A = (1/2)bh
b = 2h+1
So:
A = (1/2) × (2h+1) × h
A = (1/2) × (2h²+h)
2A = 2h²+h
2×105 = 2h²+h
210 = 2h²+h
2h²+h-210 = 0
(2h+21)(h−10)=0
2h+21=0 or h−10=0
h = -21/2 or h = 10
The positive solution is h = 10, so the height of the triangle is 10 cm.
Proof:
If the height is 10 cm, then the base equals to 21 cm (2×10 + 1 = 21).
The area of the triangle:
A = (1/2)bh = (1/2)(21)(10) = (1/2)(210) = 105 cm². (correct!)
7. 1. find perimeter and area of right Triangle of ABC whit leght AB= 12cm BC= 5cm CA= 13cm2. right triangle which elbow is C whit leght AB= 15 AC=12 the area of triangle ABC is ....... cm²
No.1
Perimeter = 12 + 5 + 13 = 30 cm
Area = ½ × 12 × 5 = 30 cm²
No.2
Area = ½ × AC × BC
Area = ½ × 12 × √(15²-12²)
Area = 6 × √(225 - 144)
Area = 6 × √81
Area = 6 × 9
Area = 54 cm²
8. The area of a triangle is 528cm2. the length of its base is 33cm. calculate the perpendicular height of the triangle.
Diketahui:
Luas segitiga = 528 cm²
Panjang alas = 33 cm
Tinggi = ?
[tex]luas \: = 528 \\ \frac{1}{2} \times a \times t = 528 \\ \frac{1}{2} \times 33 \times t = 528 \\ t = \frac{528 \times 2}{33} \\ t = 32[/tex]
Jadi, tinggi segitiga adalah 32 cm.
Jawab:
32
Penjelasan dengan langkah-langkah:
L=528
a= 33
L= a*t/2
528= 33*t/2
1056=33t
t= 1056/33
t=32
9. (4) EFG is a right-angled triangle. EFH is a straight line. FHJ is an isosceles triangle. Find LGFJ. J 52° G H 78° F E
segitiga
∆FHJ sama kaki
∠JFH = ∠JHF = (180° - ∠FJH)/2
∠JFH = (180° - 52°)/2 = 64°
∠GEF + ∠GFE = 90°
78° + ∠GFE = 90°
∠GFE = 90° - 78° = 12°
∠GFJ
= 180° - ∠GFE - ∠JFH
= 180° - 12° - 64°
= 104°
10. the measures of three sides of a triangle are 9,16,20. determine whether the triangle is a right triangle. explain your answer..
i dont know what you say
11. 1.) Triangle MNO is a right-angled triangle and triangle NOP is an isosceles triangle. MO is perpendicular to OP. ∠OMN = 53°. Find ∠OPN.
Penjelasan dengan langkah-langkah:
< MON = 90-53= 37°
< NOP = 90-37= 53° = < PNO
=> <OPN=180-(53+53)
=180-106=74°
goodluck
12. ABCD is a parallelogram. AED is a right-angled triangle. Find m
Jawaban:
gak bisa bahasa Inggris
13. 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: 8.2.414. The area of this triangle is 36 cm², the base id _______ cm.
Jawab: 8 cm
Penjelasan :
Jawaban:
luas segitiga tersebut adalah 36 cm², alasnya adalah 1.296 cm²
Penjelasan dengan langkah-langkah:
rumusnya: S x S
jadi 36 × 36 = 1.296 cm²
MAAF YA KAK KALO SALAH ☺️
15. The base of a triangle is 100 cm, the height is 98 cm. Find the area of the triangle.A. 4,900 cm2B. 4,500 cm2C. 9,800 cm2D. 9,400 cm2
Jawab:
The area of the triangle = 4900 cm²
Penjelasan dengan langkah-langkah:
The area of the triangle = 1/2 x 100 cm x 98 cm = 4900 cm²
#BACKTOSCHOOL2020
16. P(1,6),Q(-2,1) and R(3,-2) show that triangle PQR is a right-angled isosceles triangle qnd calculate the area of triangle
Jawaban:
p+q=2÷3=4,222 sedangkan di titik tengah r 3×2+4÷3=5 t=234×342÷345=3.543=(876×546)=453r=3×2=6
Penjelasan dengan langkah-langkah:
segitiga r=234
t=244-342=432
x=jari-p146
x=110-1=109
17. 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:)
18. if one angle of a triangle is equal to the sum of other two angles then the triangle is-:i) an isoscales triangle.ii) an obtuse triangle.iii) an equilateral triangle.iv) a right triangle.
Jawaban:
iii) an equilateral triangle
mungkin
maafkalausalahya.
19. The area of a triangle is 30cm2 if the height is 6 cm what is the length of the base
Jawab:
5
Penjelasan dengan langkah-langkah:
20. apa arti dari right triangle?
Jawabannya segitiga siku sikuArti dari right triangle adalah segitiga siku-siku
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