Value of x in figure shown below
a.22
b.20
c.45
d.80

A - 22

Step-by-step explanation:

This is because when you add 90 and 68 you get 158. There are 180 degrees in a triangle so you do 180-158 to get 22.

i think is g(1)=-1.

hope that i can

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.