Answer:
<em>a = 70</em>
Step-by-step explanation:
Each triangle is isosceles.
40 + a + a = 180
2a + 40 = 180
2a = 140
a = 70
Answer:
28.6%
Step-by-step explanation:
Fraction: 40/140=2/7=0.2857
Converting it to percentage: 28.6%
Hope this helps!
Answer: c
Step-by-step explanation:
To make any number a percent you divide it by 100