The measure of the largest angle of a triangle is three times the measure of the smallest triangle and 2 more than the third ang
1 answer:
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Check the picture below.
bear in mind that since we have a radical in the denominator, we'd rationalize the denominator to take it off the denominator.
bear in mind that since we have a radical in the denominator, we'd rationalize the denominator to take it off the denominator.
Answer:
70.5°
Step-by-step explanation:
22² = (20)²+(18)² - 2(20)(18) cos X
484 = 400 + 324 - 720 cos X
-240 = -720 cosx
1/3 = cos X
= X
X = 70.52877937