Answer:
The corresponding perimeter of the first triangle is 20 cm
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its perimeters is equal to the scale factor and the ratio of its areas is equal to the scale factor squared
step 1
Find the scale factor
Let
z -----> the scale factor
x ----> area of the second triangle
y ---> area of the first triangle
so
we have
substitute
step 2
Find the perimeter of the first triangle
Let
z -----> the scale factor
x ----> perimeter of the second triangle
y ---> perimeter of the first triangle
so
we have
substitute the values and solve for y
Here is the graph for the equation
33 rounded to the nearest 10 is 30, 89 rounded to the nearest 10 is 90. So 90+30 is 120. Let me know if I am right!
All are equivalent except 8 to 12
Answer:
w=120°
x=45°
y=30°
Step-by-step explanation:
AT=PR, AR=PT
Therefore, y=30°
y+45°=x+30°
x=45°
In triangle:
y+30°+w=180°
w=120°
Hope it helps! :)