Answer:
a=7.2*1.5=10.8 cm
b=6.3/1.5=4.2 cm

Step-by-step explanation:
<u>Proportional Geometric Shapes
</u>
A) We are given two similar shapes of a logo. They are to be proportional. We only need to find the proportion ratio of two of them to find the rest of the lengths.
The upper sides have 7.5 cm and 5 cm respectively. This gives us the ratio

Which means all the measures of the smaller logo are 1.5 smaller than those of the larger. This means
b=6.3/1.5=4.2 cm
a=7.2*1.5=10.8 cm
B) To paint the logos, we need to cover its surface, so the ratio of the surface is 1.5*1.5=2.25
This means the cost to paint the larger logo is

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.
(3,-9)
Answer:
Area of square = 289r²
Step-by-step explanation:
Given:
Side of square = 17r
Find:
Area of square
Computation:
Area of square = side²
Area of square = (17r)²
Area of square = 289r²