Help me with basic Geometry

for 2) What's the megerment of the missing angle

1) Go...

The figures are similar thus the angles of them are equal to each other peer to peer.

So ;

Subtract sides -30

Divided sides by 2

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Plus sides 70

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Subtract sides -20

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Subtract sides -45

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Plus sides 40

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2) Go...

They are similar so the missing angle is exactly equals the angle which is given .

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2