B. All rectangles are parallelograms! And C. All equilateral triangles are isosceles! :-)
Answer: .
Step-by-step explanation:
Answer:
Option C, 14/21=9/21 is the proportion.
Step-by-step explanation:
Given:
a.5/7 = 10/12
b.9/15 = 12/18
c.4/6 = 8/12
d.14/21 = 9/12
We have to find the proportions.
In proportion two ratios are equal, as it has an equality sign in between so both side must be of same ratio in its simplest form.
Let's work with option C
⇒ 
To find the simplest form we have to divide the numerator and denominator with same digit (or its factor).
Simplest form of
=
,
= 
Simplest form of
= 
Both sides in option C have equal ratios of 2/3.
So 4/6=8/12 is in proportion.
A fraction is a way to describe a part of a whole. The correct option is C.
<h3>What is a Fraction?</h3>
A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.
A proper fraction is a fraction whose numerator is smaller than the denominator. When a proper fraction is raised to a positive exponent greater than 1, then the product decreases but does not reach 0.
Hence, the correct option is C.
Learn more about Fraction:
brainly.com/question/1301963
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The equilateral triangle has one angle measurement of 60 what is the measurement of two remaining angles divide 60 by 2 with sugar 30 that your answer