Answer:
It looks like you forgot to attach a picture.
Since I cannot answer you're question fully, it will not be a complete solution.
The formula for the area of a triangle is
.
Just substitute you're base and height values.
Hope this helps!!!
Answer:
C
Step-by-step explanation:
Angle CAD and angle BAD are congruent.
10x - 7 = 3x+ 7
10x - 3x = 7 + 7
7x = 14
(7x)/7 = 14/7
x = 2
Plug in x as 2.
10(2) - 7
20 - 7
= 13
600/100 as a mixed number would be 6
√11 √5 = √(11 * 5) = √55 = approx 7.42 (rounded)