Here are two patterns made using identical rhombuses. Without using a protractor, determine the value of a and b. **Hint: Think of how many degrees it takes for a full circle rotation (this will help figure out angle A. Then use your understanding of supplementary angles to find angle B.

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step-by-step explanati∵∵∴∴on:

c > -10.55

step-by-step explanation:

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

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