Question

⬆️answer this question ⬆️​

Answer 1

Answer:

Solution:-

1) a + e + c = 180° ( By angle sum property)

45° + 87° + c = 180°

132° + c = 180°

c = 180° - 132°

c = 48°

2) (8,5,2) is a Pythagorean tripet.

${17}^{2} = {15}^{2} + {8}^{2}$

$289 = 225 + 64$

$289 = 289$

3) Infinite

4) Zero

Step-by-step explanation:

Hope this helps you.

# By Sparkly Princess

Answer 2

Lubrication reduces the heat generated when two surfaces are in motion. It smoothes the process by forming a film between two surfaces that reduces friction and thus improves performance and efficiency. There are different variety of lubricants and oils available such as Engine Oil, Hydraulic Oil, and Greases

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