Answer: 13.
Look at the height and the x. The measurements look very similar, and since the height= 12, 13 is the closest answer to 12 out of the three given answers, so 13 is the value of x.
Given:
The figure of two triangles.
To find:
The scale factor.
Solution:
We know that,

In the given figure,


The scale factor is 2. Therefore, the correct option is B.
Answer:
157
Step-by-step explanation:
Let the number Angad was thinking be 'x'
Equation:-
1/2(x) = 78.5
x = 78.5(2)
x = 157