Answer:
Step-by-step explanation:
1) angle 5 and 8
2) perimeter = 20 + 48 +52 = 120 m
3) area = 1/2 * 20 * 48 = 480 m^2
Answer:
x=105⁰
Step-by-step explanation:
42+x=147⁰
x=147-42=105⁰
Answer:
Part 1) The length of the new rectangle is 
Part 2) The area of the new rectangle is 
Step-by-step explanation:
we know that
If two rectangles are similar, then the ratio of its corresponding sides is proportional
step 1
Find the length of the new rectangle
Let
L-----> the length of the new rectangle

step 2
Find the area of the new rectangle
we know that
The area of the rectangle is

we have


substitute

6 x 7 = 42
And the missing number is 8, because 7 x 8 = 56.