4x+2x=180
6x= 180
Divide by 6
X= 30
The area is just the dimensions multiplied, so multiply 7 by 18 and you get 126.
-4 because it makes it true
Answer:
145°
Step-by-step explanation:
< 6 + <2 = 180° {being linear pair }
70° + < 2 = 180°
< 2 = 180° - 70°
< 2 = 110°
Now
< 4 = < 1 + < 2 (exterior angle of a triangle is equal to the sum of two opposite interior angles)
<4 = 35° + 110°
= 145°
Hope it will help :)