Answer:
c ≈ 21
Step-by-step explanation:
By applying cosine rule in the given triangle ABC,
c² = a² + b² - 2abcos(C)
c² = (17)² + (10)² - 2(17)(10)cos(98.8°)
c² = 289 + 100 - 340(-0.1530)
c² = 441.015
c = 21
Answer: It should be 144 in total
I did the math
<em>√(a² + b²)</em><em> </em><em>is </em><em>the </em><em>answer</em><em> </em><em>as</em>
both ABC AND DEF are right triangles...
So Pythagoras theorem will work here
