Isocolese triangle has 2 angles of same length
all angles in a triangle add to 180
so
if the angles are m∠A, m∠B, m∠C, then
either m∠A=m∠B or m∠B=m∠C or m∠A=m∠C
anyway
so if we assume that vertex B is the one that has a twin then
130+130+?=180
260+?=180
?=-80
false, we can't have a negative angle measure
so 130 must be the odd one
?+?+130=180
2?+130=180
2?=50
?=25
so
m∠A=m∠C=25°
let's test the 2nd answer choice
m∠A+m∠B=25+130=155, yep
test 3rd
m∠A+m∠C=25+25=50≠60, nope
not 3rd one
so answer is 2nd statement
<span>m∠A + m∠B = 155° </span>
Answer:
AC = 21, AB = 19, and BC = 22
Step-by-step explanation:
If x is the length of AC, then:
AB = x − 2
BC = x + 1
The perimeter is the sum of all three sides:
62 = x + x − 2 + x + 1
62 = 3x − 1
63 = 3x
x = 21
Therefore:
AC = 21, AB = 19, and BC = 22
Answer:
I'm pretty sure she needs to have $18.45
Step-by-step explanation:
All you have to do is add the numbers together to get the minimum amount
X=3
Y=1
3+1=4
3^2+1^2=9
Hope this helps :)
The formula to find the sum of consecutive numbers is x+x+2+x+4=66
In a simplified version is
3x+6=66
Now subtract the 6 from both sides and then divide both side by 3
x is 20. so the 3 numbers are 20, 22, and 24
