Angle A= angle B
angle C= angle a(2)
a+a+2a=180 (since all triangles equal 180 degrees)
180=4a
180/4
a=45
angle A and angle B both equal 45 degrees. Angle C equals 90 degrees.

8 0

4 years ago

What two ratios form a proportion? A 4/20 and 1/5 B. 4/20 and 2/5 C. 20/4 and 1/5 D. 20/4 and 2/5

Stels [109]

Answer:

Step-by-step explanation:

$\frac{4}{20}$ ← divide numerator/ denominator by 4

= $\frac{1}{5}$

Thus A form a proportion

$\frac{4}{20}$ ≠ $\frac{2}{5}$

Thus B is not a proportion

$\frac{20}{4}$ ← divide numerator/ denominator by 4

= $\frac{5}{1}$ ≠ $\frac{1}{5}$

Thus C is not a proportion

$\frac{20}{4}$ ≠ $\frac{2}{5}$

Thus D is not a proportion

5 0

4 years ago

Read 2 more answers

Given the figure below, find the values of x and z

Dafna1 [17]

Answer:

my bad it was a mistake .

Step-by-step explanation:

7 0

3 years ago

Country A has a population of 514,482 and Country B has a population of 523,407. How would you compare these populations

prohojiy [21]

You can subtract the populations to see by how many more people/citizens does country B have

8 0

3 years ago