D is equal to 17
reason:
(-2) times (-) is positive 2. so then you would do (19-2) to find D= 17
Answer:
Step-by-step explanation:
solution:
given:- BE is bisector of ∠DBC and BE//AC
statement reasons
1. ∠DBE= ∠BEC 1. since, BE is bisector of ∠DBC
2.∠DBE=∠BAC 2. corresponding angle are equal
are equal.
3.∠EBC=∠BCA 3. alternative angle are equal
4.∠BAC=∠BCA 4. from statement 1,2,3
5 therefore, triangle ABC is 5. if base angle are equal it is a an isosceles triangle isosceles triangle
6. AB=BC 6.corresponding sides of equal angle
isosceles triangle are equal
proved
Answer:
Multiples:7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126,133,140,147,154,161,168
Factors: 1, 7
Answer:
C. 69°
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180
two of the angles are given to find the third one we subtract their sum from 180
180 - (36+75) = 69 degrees
Answer:
X = 12
Y = 4
Step-by-step explanation:
X + Y = 16
X = 3Y
3Y + Y = 16
4Y = 16
Y = 4
X + 4 = 16
X = 12