Answer:
Option (a)
2x-10
Step-by-step explanation:
Area of shaded region= area of square - area of rectangle..
= s×s - l×b
= 2x -10...
Answer: First one: lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
The Cosine Law:
c² = a² + b² - 2 a b cos C
14² = 28² + b² - 56 · b · √3/2
196 = 784 + b² - 28√3 b
b² - 28√3 b + 588 = 0
b 1/2 = (28√3 +/- √(2352 - 2352 )) / 2 = 28√3 / 2 = 14√3
Answer:
The given measurements determine one triangle.
the width of a book is about ("25 x 20cm")
the length of a pencil is about 15cm (19cm if unsharpened)