Find the two-digit number whose tens digit is 4 less than its units digits if the original number is 2 more than 3 times the sum
1 answer:
You might be interested in
Note: Consider we need to find the vertices of the triangle A'B'C'
Given:
Triangle ABC is rotated 90 degrees clockwise about the origin to create triangle A'B'C'.
Triangle A,B,C with vertices at A(-3, 6), B(2, 9), and C(1, 1).
To find:
The vertices of the triangle A'B'C'.
Solution:
If triangle ABC is rotated 90 degrees clockwise about the origin to create triangle A'B'C', then
Using this rule, we get
Therefore, the vertices of A'B'C' are A'(6,3), B'(9,-2) and C'(1,-1).
Answer: AC= 10 cm and CE= 5 cm
Step-by-step explanation:
In the given picture, Δ ADE is a right triangle
∴ By Pythagoras theorem,
Since triangles ABC and ADE are similar and corresponding sides of similar triangles are proportional therefore,
Now, AE=AC+CE
⇒CE=AE-AC
⇒CE=15-10=5 cm