Answer:
C = 86 degrees
Step-by-step explanation:
x = 10
Answer:
Infinitely many triangles.
Step-by-step explanation:
Given the lengths of two sides are 8 inches and 10 inches.
Let's assume third side = x inches.
Using the Triangle Inequalities given as follows:-
1. a+b > c,
2. b+c > a,
3. c+a > b.
Using the lengths given in the problem, we can write:-
1. x+8 > 10 ⇔ x > 10-8 ⇔ x > 2.
2. x+10 > 8 ⇔ x > 8-10 ⇔ x > -2.
3. 8+10 > x ⇔ x < 18.
So, the solution set is 2 < x < 18. It means third side can take any value in interval (2, 18).
Hence, there are infinitely many triangles.
I think (7,10)
I hope that I helped ;D
Answer:
C
Step-by-step explanation:
The formula for the area of a trapezoid is: 
(height)(sum of parallel lines)
Thus, the formula in this question would be: (4)(4+8) which is option C
Wouldnt it be 21 idk dont pay attention to me lol
