Answer:
m∠ABC=42°
Step-by-step explanation:
m∠ABD=70°
⇒m∠ABD=m∠ABC+m∠CBD
⇒70°=(3x+33°)+(5x+13°)
70°=8x+46°
70°-46°=8x
24°=8x⇒x=3°
x=3°
Then,
m∠ABC=3x+33°
put x=3°, we get
m∠ABC=3×3°+33°=9°+33°
m∠ABC=42°
Expanded form: 700,000 + 2,000 + 1
Answer:
what question?
Step-by-step explanation:
The perimeter of the triangle is: 4x+9
Step-by-step explanation:
Perimeter is the measurement of boundary of any closed figure.
Given
s1 = x+4
s2 = x+8
s3 = 2x-3
So, the perimeter will be the sum of all three sides
![P = s_1+s_2+s_3\\= (x+4) + (x+8) + (2x-3)\\= x+4+x+8+2x-3\\= 4x+9](https://tex.z-dn.net/?f=P%20%3D%20s_1%2Bs_2%2Bs_3%5C%5C%3D%20%28x%2B4%29%20%2B%20%28x%2B8%29%20%2B%20%282x-3%29%5C%5C%3D%20x%2B4%2Bx%2B8%2B2x-3%5C%5C%3D%204x%2B9)
Hence,
The perimeter of the triangle is: 4x+9
Keywords: Perimeter, triangle
Learn more about perimeter at:
#LearnwithBrainly
14. take 210 and divide by 15 gives you 14. To check yourself take 15 ×14=210.