The base angles are both 74°
Further explanation:
An isosceles triangle is a type of triangle that has two sides and two angles equal.
Let A, B and C be three angles
Let A=32°
If A is 32 then B and C will be equal
The internal angles of a triangle are 180°
So,
m∠A+m∠B+m∠C=180°
We know that B and C are equal
m∠B=m∠C
So putting the value of A and replacing C by B
32°+m∠B+m∠B=180°
32°+2m∠B=180°
2m∠B=180°-32°
2m∠B=148°
m∠B=148°/2
m∠B=74°
As
m∠B=m∠C
So
m∠C=74°
The base angles are both 74°
Keywords: Isosceles Triangle, Angles
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(a)
- right-most point is (6,12) (always use this one)
- left-most point is (3,31)
- slope is 9/-3
point-slope form : y-12 = 9/-3(x-6)
my work portion:
y-12 = 9/-3(x-6)
•SIMPLIFY 9/-3
y-12 = -3(x-6)
•DISTRIBUTE -3(x-6)
y-12 = -3x+18
• MOVE -12 ONTO THE OTHER SIDE AND CHANGE ITS SIGN
y = -3x+18+12
• ADD 18 and 12
y = -3x+30
slope intercept form : y=-3x+30
(b)
i don’t understand . im sorry .
hope this helped :)
Answer:
0.45
Step-by-step explanation:
